Advantages and Disadvantages of Gift Cards

In the United States gift cards credited for $ 19 billion in sales during the 2005 Christmas holiday season and $ 25 billion during the same season the following year. Analyzes agreed that the tremendous popularity of gift cards was attributable to their convenience (in terms of both purchasing and mailing) and appropriate respectability. Gift cards somehow managed to convey a certain amount of thoughtfulness on the part of the giver, unlike a check or an envelope of cash.

Still, however, gift cards carried certain drawbacks for the consumer. In 2006 many cards still carried a range of restrictions, including expiration dates, dormancy charges (for instance, the value of a card might diminish by $ 2 if it was not used for six months), and the inability to combine the balance on the card with another payment form (say, for example, you have a $ 30 gift card and want to use it as partial payment for a $ 50 set of towels; in some cases the card is returned for "insufficient funds," so you can only use it for a purchase of $ 30 or under).
Advantages and Disadvantages for the Retailer

However popular gift cards may be with consumers, retailers love the cards even more. Retailers benefit from selling gift cards in several ways. First, they receive money up front for the purchase; If the gift card is lost, destroyed, or for any reason goes unredeemed, the retailer has effectively received "free money" for the original purchase of the card. Second, the gift card draws new customers (the card recipients) into their stores. Third, the person redeeming the gift card often spells more than the amount of the card. Lastly, it often happens that when the gift card is redeemed, a small balance remains unspent on the card. If this balance is not sent at a later date, the retailer makes an extra profit. In 2006 JC Williams Group, a global retail-consulting firm, estimated that about 10 percent of the prepaid value of gift cards is never spent.

The main disadvantage for retailers is that gift cards are reliably expensive to manufacture. Depending on the volume of cards a buyer orders, the cards can cost up to $ 3 each. The retailer also must pay fees to the outside firm that handles the electronic network used to process the cards.



Source by Kris Lee

Abrasive and Adhesive Wear

Abrasive wear happens when the particular material is being removed from one surface, by another harder material. In results, hard particles of the debris between the 2 surfaces are formed. The terms scratching, gouging or scoring are used depending on the degree of abrasive wear. In simple words, the harder material scratches the softer material.

There are 2 condition in which abrasive wear occurs. The 2 body abrasion and 3 body abrasion. In the former, the harder surface rubs the other. Examples of these include mechanical grinding, cutting and machining. The latter involves a third body. This third body is generally a small particle of abrasive between the 2 softer rubbing surfaces.

Microscopically, abrasive wear causes asperities of the harder surface to press into the softer surface, with plastic flow of the softer surface formed around the harder asperities. These result in ‘microploughing’ and ‘microcracking’ where tangential motion is imposed.

This abrasive wear can be reduced by applying ‘hydrodynamic’ or ‘elastohydrodynamic’ lubricants at various film thickness. This separates the surfaces and wash out any contaminant particles in between. Using the correct coating material and various thermally sprayed techniques greatly benefits the resistance to abrasive wear.

Adhesive wear is often referred to ‘scuffing’. This happens when adhesive junctions that are newly formed lock together and as 2 surfaces slide across each other under pressure. When normal pressure is being applied, local pressure at the asperities become extremely high. Often times, the yield stress is exceeded. Then these asperities deform plastically until the real area of contact has increased sufficiently to support the earlier, applied load.

If no lubricants are used, asperities are to be cold welded together. Otherwise, junctions will shear and form new junctions. This said wear mechanism not only destroys the sliding surfaces, but permits the generation of wear particles. In turn, these wear particles lead to cavitation that can cause component failure.



Source by Alfred Chai Wei Liang

Are Non Prescription Glasses Bad For Your Health?

To decide whether non prescription glasses are bad for your health, you first need to consider which definition of “non prescription glasses” you are using. This particular term is used in two different ways. It can mean “fake” or fashion glasses, which do not have corrective lenses; they are similar to normal sunglasses, except they are not shaded. The second definition of “non prescription glasses” means that they are vision-correcting glasses that were acquired without a prescription.

If you are using the first definition, and want to go shopping for fashion glasses that have no corrective properties, then you will be perfectly fine, as they will not damage your eyes at all. After all, people have worn sunglasses for many years without ill effects, and of course sunglasses may also protect your eyes from damaging ultraviolet rays, depending on which ones you buy. The main danger for people who wear non prescription fashion glasses appears when vanity overrides sanity. It is ill-advised to drive at night or in dull conditions wearing dark sunglasses, and although there is no danger to your eyesight from wearing the glasses, you are at increased risk of having an accident due to decreased visibility.

A little care needs to be taken if you are going to wear the corrective type of non prescription glasses. If the wrong strength of lenses is selected, the result can be eyestrain and associated headaches, and over a period of time this can cause damage to the eyes.

If you suffer from presbyopia – a condition involving the deterioration of eyesight due to aging – you will be more likely to benefit from cheaper non prescription reading glasses. However, it is still important to go to a reputable store, such as a pharmacy, where you will be able to try a wide selection of glasses of differing strengths. Once you have found the optimal strength of lenses, you will be able to pick out a pair in a style of your choosing.

For people younger than 40 years old, and particularly in cases where blurred vision develops rapidly, or is accompanied by other symptoms such as headaches, it is vitally important to see an optician or optometrist in the first instance. There are well documented cases where people have developed vision problems, to find that the underlying cause was a more serious health condition. Eye specialists are trained to spot these problems – though in the vast majority of cases, the cause of the vision defect will be normal and benign.

Some of the possible health conditions that have been noted to affect vision include diabetes, where rapidly changing blood sugar levels can affect the quantity of fluid in the eyes, causing swelling which results in distortion of vision. Another, potentially fatal, condition is extreme hypertension which can lead to heart attacks and strokes. Such an underlying problem may be spotted by an optometrist because it can lead to swelling of the optic disk. Even brain tumors have been identified by eye specialists during examinations for the cause of blurred or double vision.

So to answer the question whether non prescription glasses are bad for your health, in general they are not. If you are healthy and are positive you do not have any underlying medical conditions, they will be perfectly fine. However, all cases where there is a sudden change in your eyesight should be investigated by an expert to rule out anything more serious than a vision defect. In general, once you have been prescribed your first pair of corrective glasses, usually fairly early in life for shortsightedness, it is recommended that you see an optician for a retest every two years. If you are over 40 years old, though, and your sight has slowly deteriorated over a long period, then non prescription glasses will be fine, though there is no reason to avoid seeing a specialist if you are concerned about any other accompanying symptoms.



Source by Len Grinder

Wallace Wattles PDF Book The Science of Getting Rich: Foundation of Other Law of Attraction Theories

If you take a close look at The Science of Getting Rich by Wallace D. Wattles, you’ll soon discover how much this book has influenced the whole Law of Attraction movement. This book is considered one of the most influential books about the power of our mind to create the life we dream about. Here are four keys elements of The Science of Getting Rich PDF by Wallace D. Wattles that, I think, distinguish the book from other law of attraction books:

First, the Science of Getting Rich in available in PDF for free. The book, written in 1910 by Wallace D. Wattles, is now in the public domain. This is the reason why it’s available for free download in PDF format. It’s not only some excerpts, but the whole book in PDF. Don’t assume that because the book is available for free, it means that it is not extremely valuable content. Again, the only reason is the age of the copyright, not the value of the content. In fact, this book is, according to me, one of the most important book about the power of your subconscious mind or the so-called Law of Attraction. In fact, The Science of Getting Rich is still inspiring many extremely successful entrepreneurs, a century after Wallace D. Wattles exposed this secret to the world.

Second, Many well-known Law of Attraction theories are based on this exact Science of Getting Rich book, now available to you in PDF. Ronda Rhymes, author of the unbelievable success The Secret, refers to this book as one of the turning point of her life. The same thing is true of Bob Proctor, also a very successful Law of Attraction guru. Even those who don’t explicitly talk about The Science of Getting Rich were greatly inspired by it. If you have read other books about the power of the mind, you surely noticed that they are very similar to the original book by Wallace D. Wattles, written in 1910. The vast majority of other theories were greatly influenced by The Science of Getting Rich, available for everyone in PDF.

Third, Where other teach that you can control everything with your mind, The Science of Getting Rich insists on taking ACTIONS. Wallace D. Wattles is clear about this fact in 2 chapters called “Acting in a Certain Way” and “Efficient Action”. In fact, Wattles even warns us against the temptation of relying solely on the power of the mind to attract riches to our life. According to the author of The Science of Getting Rich, the lack of focus on Actions is the most important reason why so many other theories about the power of the mind fail. As Mr. Wattles says it, by cultivating a certain state of mind, you may “attract” the things you want… but it is only through efficient actions that you will get what you want. The Science of Getting Rich doesn’t ask people to work like workaholics, but to act efficiently.

Fourth, The last key element of The Science of Getting Rich is its central focus on getting rich. Mr. Wattles didn’t want us to be contented with a little. The PDF book does not suggest that being really rich means having great friends, family, a great spiritual life, being healthy, or else. The book talks about getting rich. That’s it. Sure, some will find that the same principles could be applied to other aspects of their life. Sure, some will feel more calm and at peace when reading the PDF of The Science of Getting Rich. It’s perfectly fine. Mr. Wattles, however, by writing The Science of Getting Rich book, wanted us to become really rich, financially, and not only emotionally of spiritually.

Those four points are, according to me, some key differences between The Science of Getting Rich book, available in PDF for copyright reasons, and other Law of Attraction books.



Source by Ryan T D

All About the Starcraft Mods

StarCraft is a military science fiction video game that came on the market in 1998 from Blizzard Entertainment. It has become one of the best-selling computer games with more than 9 million copies sold throughout the world. It is considered as one of the best games of all times and raised the bar for the development of future video games. Based on the success of this game Starcraft mods have also been developed, by hackers who want to cash in on this success and make money on their own.

Many of the custom configurations you get when you purchase the StarCraft game use the same editor. However, with some of the newer games you have to make a few custom hacks changes to be able to get around the restrictions of the existing editor. Some of the mod creators even record their own sound effects and voices, but for the most part they still exhibit the same polished integrated structure as the original game. This is because it is reliably easy to break the balancing and produce artwork that fits in with the Blizzard creations.

There are custom mods for the StarCraft game that do have changes made in the programming. This gives these mods their own unique take on the game. Hackers that create these mods can adapt the StarCratft files and have different sounds and graphics. Some of the mods are even more intense than the original game providing for single players. Others have made extensive changes to the sound and graphics and even the action of the game itself.

There are many different mods of the StaraCraft game, some of which vary little from the original. They include:

– Aliens vs. Predator: Retribution TC – this is a German speaking version of the game with total conversion
– Brutkrieg.de's TC pack – This German version of the game features a collection of homemade add-on packs and TC's. They are bundled together and sold as one package.
– Gundam Century – This was originally called GundamCraft that replaced the StarCraft graphics with the manga mecha characters of Gundam and their robotic vehicles. The game also replaced two of the StarCraft races – Federation replaced Terrans and Neo Zion replaced Protoss. The site was shut down for a while, but is now live again. However production of new mods has not resumed.

– NeoTech – This mod features an upgrade to all the Terran forces with most of the units replaced by units that look more spectacular.
– Open Rebellion – This is a total conversion of the Brood War that very closely resembles the original version.
– Robotech: Enemy Frontier – This is a total conversion of the Robotech game of the 1980's.
– StarCraft Sickel Add-On – This is a fan built extension kit for the Brood War game. It adds to the existing line of units and allows for the addition of new units. There are two new Terran tanks, a new Zerg unit and several capital classes of Protoss.
– StarCraft Team Fortress – This mod totally changes the game so that it is somewhat like the Half-Life Team Fortress.



Source by Ling Tong

Confused On Which Application Monitoring System to Buy

Majority of enterprises use some type of network monitoring system to monitor their IT infrastructure. A superior network monitoring system will track tools for uptime, bandwidth usage and track end-to-end system performance. While this type of monitoring solution is useful when issues occur on the network it does not help when there is any issue with any application. IT organizations require multiple applications to support their own business. Having the devices in place to monitor these applications is a life saver when things go wrong. Let's have a closer look why application monitoring systems are required and what are the available application monitoring solutions.

Why Application Monitoring Required

Application monitoring tools track those applications which are not functioning properly, even if users are able to access it. For instance, all of a sudden your users can not access email. A monitoring system will notify you or send an alert on a dashboard that a service is not working. Being able to quickly identify problems with organizations applications will allow the smooth functioning of the IT system and at the same time deliver better services to the users.

End to end application monitoring will offer you a quick overview of your applications, trend reports, performance analysis and identify growth areas. All these information is necessary when it comes to planning, addressing SLA's and fixing problems before it cause major outages.

Solutions for Monitoring Application Performance

There is a wide variety of options to choose from, when it comes to finding an application monitoring solution. It entirely depends on your needs. There are standard applications for monitoring single systems and there are enterprise monitoring solutions that can monitor multiple systems on your network. Open source applications and commercial applications are also available. Some features that you should look for before determining what best fits your needs are:

Performance Management: You should look for a product that offers a lot of monitoring parameters for instance, CPU, response time, memory etc.

Web Console: Ensure that you are able to access the console from a browser as it is the easiest way to manage applications.

Alerting System: Look for different type of alerts as per your requirements. Email alerting, syslog, SMB traps, text message are some of the alerting types.

Administration Roles: Look for different roles such as administrator, manager, operator, user, etc.

Reporting: Having a strong reporting system helps to determine trends and potential issues.

These are just a few basic features to look for. Majority of application monitoring solutions provide a long list of features.

Do not skip out on monitoring your organization's applications. A real time monitoring solution can be a life saver and maintain the smooth functioning of your IT infrastructure.



Source by Mark Waltzer

Have You Heard of a Breast Enhancement Gum?

There are so many more women out there today that really do wake up in the morning and wishing that their breasts were a little plumper, firmer and even a little larger. Although most women really will not admit to their wishes out loud, but they have secretly longed for a better set of breasts every time they put on a sexy article of clothing and especially those more reveling summer time outfits.

There was a time not so long ago that these secret wishes of more beautiful breasts could only be wishes unless you decided to have some form of breast enlargement surgery. But the thought of actually having a highly invasive surgery just is not an option for most women due to the dangers of surgery. Since there is always the short-term and even long-term healing processes and high amount of risks that comes along with most breastfeeding breastfeeding procedure, the choice is hard for many women to make. If you then finally work through the mental process of taking the health risks, there is also the huge amount of money that breast surgery will cost you!

Today the consideration of larger breasts no longer must be the ways of invasive surgical procedures or no way at all to getting those permanently finer, plumper and firmer breasts that you have longed for through the years. These breast beautification wishes often even get stronger instead of going away, and especially after having children and just getting older. Thanks to those experts that understand how all of these women feel about their breasts, there are now some all-natural breast enhancement options that will give you those wished for breasts. Although these breast firming and growth pills, creams, lotions and gums will not give several extra cup sizes larger, or at least a few notches up in the breast firmness and size with a permanent end result.

With these all-natural breast enhancement chewing gums herbal supplement pills, and lotions or creams, they are so easy to use and will give a boost in the natural breast growth hormones by stimulating the breast naturally. By everyday recommended usage, of the chewing gums or pills, you will see overall results within a few weeks to a few months. Your breasts are going to become permanently plumber and firmer, more often than not; there will even be up to a full cup size larger of breasts!



Source by Anita R Choudhary

Bunny Love: Benefits of Rabbits as Pets

Are you thinking of adopting a rabbit for a pet? We don’t blame you–rabbits are very cute animals, who can give you many years of affection and amusement.

However, be sure you are ready for the responsibilities of taking care of this animal. While they are certainly easier to manage than dogs, they still require some attention.

For example, rabbits molt four times a year, so be prepared for a little fur on your sofa every few months. They’ll need hay, a litter box, and a cage (clean frequently with white vinegar to remove odors). If you use hay or woodstove pellets for their litter boxes, you can use these to fertilize your garden when it’s time for a litter change.

When you own a rabbit, you need to accept that a little nibbling is part of the territory. Protect electric cords with casings (available at hardware stores) since the poor pets may get quite a shock if they try to test their teeth on them!

You should also be willing to pamper your rabbit with petting and play (rabbits get depressed if they don’t get enough exercise). Rabbit gyms are available in pet stores. They have tube tunnels that will encourage your pet to run and race, even if you can’t let him out in the garden. Those tube tunnels will also make an interesting conversation piece for your guests–talk about the “new” form of “installation art”!

Not all veterinarians are trained to take care of rabbits, who are considered “exotic pets”/ You may need to shop around and call various clinics, which are usually listed in the phone directory. The pet store may also refer you to veterinarians. .

And finally, if you have children, do talk to your pediatrician first before buying a rabbit. The doctor is in the best position to tell you whether your child has any allergies, asthma problems or other health concerns that may be aggravated by rabbit fur. It’s better to be safe than sorry!

But these sacrifices are nothing compared to the benefits of having a pet rabbit. For one thing, your pet will inspire you to change your diet–since you have to keep a supply of fresh vegetables for him, you might as well make yourself a salad! Recent studies also reveal that owning a pet significantly reduces blood pressure and can even help with depression.

You don’t need to take rabbits for a walk, or worry about the inconvenience of walking around with a “pooper scooper”. Just let him out in the early morning or dusk, and watch him play while you enjoy a cup of coffee.

Nor do you have to worry about your rabbits disrupting the neighbors. They don’t bark or meow, and the “loudest” they ever get is the patter of their feet on the floor. That makes them ideal pets for apartment dwellers.

Rabbits are also ideal pets for the elderly, who may not have the energy to take care of a very large animal. They love being petted and are the ideal “lap pets”.



Source by Philip Nicosia

Review of Secrets of Millionaire Investor Book by Adam Khoo & Conrad Alvin Lim

Before this book, I had no idea about what were the true techniques to invest in the stock market. When I saw this book on the shelve of bookshops, I immediately turn its pages to check it's content and was pleasantly surprised at the level of detail and coverage of investing in the stock market. Impressed with what I read, I bought it without hesitation.

After reading this book and applying some of the lessons taught, I can say that I am a better investor in the stock market now. Before, I was only a rookie. I will explain to you why.

This book teachers both the fundamental aspects of selecting stocks which Adam will show you. The technical aspects to trading is illustrated by Conrad who traded his way way out of bankruptcy using very good strategies. He easily makes US $ 5000-US $ 7000 a month trading stocks and options. That can replace anyone's salary anytime, will not you agree? His record is US $ 22k ++ in a single month.

One of the important concepts stated early in the book is to invest in the stock market and use the power of compounding. You can be an automatic millionaire by the time you retire using this technique. All you need is patience and some consistency in investing. This was how Warren Buffet became the richest man by investing in the US market and let his investment returns compound.

The rest of the book explains four strategies to grow your funds in the stock market depending on which level of an investor you are currently at with the returns and time horizon you are looking at.

The first growth strategy is the most basic level for novice investors which teachers you to achieve compounded returns of 10% -12.08% annually by buying the market or buying sectors or industries that are outperforming.

The second growth strategy shows you about value investing which can achieve you an annual return of 15% -25%. This method requires you to buy great companies at huge discount and sell them for a huge profit. Warren Buffet uses value investing to pick his stocks. You will learn the nine criteria of value investing to pick stocks that investors like Warren Buffet or George Soros would.

The third growth strategy explains to you about momentum investing which you can achieve a higher return of more than 25% at a shorter time like 3 to 6 months. This involves picking stocks that are about to increase in price significantly due to market optimism. Adam shows you seven steps to screen for this kind of stocks.

The last growth strategy is the most advanced of all, which allows you to net a handsome 100% -500% returns in one day to 3 months. This strategy involves the buying and selling of stock options which is trading. Trading allows you to make money in any direction, be it up, down or sideways. The authors have dedicated 2 chapters to explain the fundamentals of options and clearly illustrated with examples on a few commonly used strategies for reader.

I enjoyed this book very much as it was clearly written and provided a practical approach to investing and trading. This book has given me a good foundation as a beginner to prepare me for more advance strategies and implementation. I strongly recommend this book to anyone who wants to start investing or trade in any stock market and does not know how to start.



Source by Raymond Heng

Workstation Health and Fitness Solutions For RSI

Repetitive Strain Injury (RSI) is now a major industrial disease affecting millions of people around the world. RSI includes conditions such as carpel tunnel syndrome, tenosynovitis and tendinitis – often collectively referred to as upper limb disorders, musculoskeletal disorders, occupational overuse syndrome (OOS), computer related injuries or cumulative trauma disorders, or CTD. Often the posotion of workstations and the design of the PC and accessories can affect how our health and safety.

1. Workstation Ergonomics

A well designed workstation is essential to maintaining good posture and reducing the risk of lower back pain and other computer related injuries.

2. Ergonomic Keyboards and Mice

There are quite a few ergonomically designed keyboards and mice available. The Microsoft Natural Keyboard is one example. This keyboard splits the keys into two panels – one for each hand, and angles each panel so that the hands sit naturally on the keyboard, rather than requiring them to be twisted into an unnatural position which is the case with normal keyboards. Many mice are now designed to fit neatly into either hand, and can often have a scrolling wheel, which can make scrolling through documents easier and less stressful than using scroll bars.

These ergonomic devices are generally more expensive than standard designs, but can be well worth the investment.

3. Ergonomic Use of Keyboards and Mice

The computer mouse was originally designed to make using a computer easier – it is much easier to point at a picture and click than to learn a relatively complicated series of keystrokes. However, research has shown that using a mouse is a significant cause of repetitive strain injury. Especially if the mouse is located at the same level and to the side of the keyboard – it's usual location. This requires extending your arm which introduces significant tensions and stresses in your arm, shoulder and neck.

The best position for your mouse is on a raised platform slightly above the numeric keypad on your computer. Also, if you reduce the speed of the mouse and the number of clicks you have to make you can greatly reduce the muscle tension in your arm and hand. Additionally, you can swap the primary and secondary mouse buttons (the left and right buttons), to change the mouse from being right handed to left handed. Using your left hand – or right hand if you are left handed – can take some getting used to, but can be very helpful if you are suffering from any aches and pains in one hand. Regularly alternating between left and right hands can also give your arms and hands a rest, so minimizing the risk of developing any RSI condition. You can swap the mouse buttons using the mouse applet in the Windows Control Panel – or directly from the Stress Buster context menu – with fewer mouse clicks and / or key strokes.

To reduce the mouse speed, open the Mouse applet in the Windows Control Panel, select the tab Pointer Options and move the pointer speed slider to the left to slow. Click OK.

To reduce the number of clicks you have to make, open the My Computer icon, then select Tools, Folder Options, and then under Click Items As Follows, choose Single-click to open an item.

If you can you should avoid using the mouse as much as possible. Most actions and commands can be transported out using keyboard shortcuts instead of the mouse. For example, to reduce the number of clicks you have to make with your mouse – as described above, you could use the following keyboard shortcuts:

1. Press the button on your keyboard to open the Windows Start Menu.
2. Use the arrow keys to select My Computer (or the alternative name you may have given to your computer), and then press Enter or Return. This will open an explorer window for your computer.
3. Hold down the Alt key and press "T" to open the Tools menu, then press "O" to open Folder Options.
4. In Folder Options, hold down the Alt key, and press "S". This will select the option Single-click to open an item.
5. Press Enter or Return to close the Folder Options dialog.

Windows Help provides extensive help on using keyboard shortcuts with Windows. Individual applications such as Microsoft Office also have their own keyboard shortcuts – with the appropriate help. Learning keyboard shortcuts can take some time, but once learnt, using them tend to be faster than using the mouse, and avoids much of the discomfort associated with the mouse.

4. Rest Breaks

All ergonomic experts agree that taking frequent rest breaks is essential to avoid the risk of computer related injuries.

You should take frequent "eye breaks" – staring at a computer monitor for long periods causes you to blink less often – resulting in dryer eyes. Every 10 to 15 minutes you should look away from your monitor and blink your eyes quickly for a few seconds. This will refresh the tear film and clear any dust from the surface of the eyes. Additionally you should focus on something at a distance – preferably 20 feet or more away – look out of the window if you can – this will relax the muscles inside the eye.

You should take frequent short pauses or "micro pauses" – for 10 seconds or so up to a minute – every 10 minutes or thereabouts. You should take regular short breaks – for 5 minutes or more – every hour or so – maybe go for a coffee or a short walk around the office, and you should take a long break every two or three hours – for at least 15 minutes, or preferably 30 minutes to an hour. Exactly how long and how frequent your breaks are depends on your own personal preferences and working environment.

5. Stretching Exercises

Regular stretching is an essential part of RSI prevention and recovery, remember that your body is not designed to be sat at a desk for 8 hours a day clicking a mouse. Respect your body and give it the movement and range of motion it normally expects.

6. Posture

Good post is essential to avoid repetitive strain injury and other computer related injuries. Well designed workstation ergonomics can help in maintaining a good posture.

* Make sure that you can reach the keyboard with your wrists as flat as possible (not twisted up or down) and straight (not twisted left or right). An ergonomic keyboard can help to keep your wrists straight.

* Make sure that your elbow angle is 90 degrees or more to avoid nerve compression at the elbow.

* Make sure that your upper arm and elbow are as close to the body and as relaxed as possible for mouse use – avoid overreaching. Also make sure that your wrist is as straight as possible when the mouse is being used.

* Make sure that you sit back in the chair and that you have good back support – especially lumber support.

* Make sure that your feet are flat on the floor. Use a foot rest if necessary.

* Make sure that your head and neck are as straight as possible.

* Make sure that you are relaxed. Forcing yourself to sit up straight can sometimes introduce unhealthy tensions in the back muscles.

7. Alternative Input Devices

There are a number of alternative input devices you can use, instead of the mouse and keyboard, which you might find helpful. Examples are the trackball, a graphics table and pen, a touchpad, and even voice control.

RSI is a very serious health risk, especially with the young people who are coming to any industry sector that has continuous use of a PC. You need to take all the actions and preventions necessary to help minimize that risk.



Source by Gerard Bulger