Re: [iPad] iOS 9.3: All the New Features For the iPhone and iPad

 

I have also never noticed any ill effects from using my iPad or iPhone (or Kindle) before going to bed, but maybe there are some individuals who do?  

As a physician, I would not be at all surprised if someone delineated a physiological difference — probably genetically determined — that make some people more sensitive to blue light than others.

My wife is very dose-sensitive to caffeine and to medications like antihistamines. I am not. Probably a single enzyme system.

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 Jim Saklad                                           mailto:jimdoc@icloud.com

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Posted by: Jim Saklad <jimdoc@icloud.com>
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