Quote:
Originally Posted by carandol
I used to have an iRex iLiad, which I held in my left hand while using my left thumb to turn the page. Now I've replaced it with a Bebook, which has two sets of keys for page turning, so *both* my thumbs get exercise. Though it's a smaller screen, so my eyes don't get so much exercise in moving left to right and back.
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that's right. Balance is the name of the game. You dont want any dangerous muscle imbalances.

For the eyes, i have a good substitute - I try reading a book while watching the telly - the amount of exercise the eyes endure is phenomenal.