As centuries are changing environment along with its strategies changes. Laptop emerges, iPad, Mac and many more for people comfort but problem arises when people use them as a wrong way through wrong body postures. You can't imagine it effects you in such a bad way like damaging your backbone, effecting your eyes, people have complaints of wrist pain because of using too much mouse etc. These all, and many other problems arises when you are ignoring the best possible ways of using computer, especially ignoring its angle. I personally suggest you to MUST WATCH this video and APPLY it as well along with guiding others who are using computers.

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