Is it bad for your health if you use your smartphone often?

A. 1

Electronic devices such as smartphones should not be used for a long time because of electromagnetic waves.
Even if you use it, it's better to use it more than 5m away, but smartphones won't be possible.
It's best not to use a smartphone
Work with a PC if you can replace it.

Gentleman 8 years ago 0

OK

A. 2

I heard that the blue light from the smartphone makes your eyes tired.
It also makes your eyes tired because it brightens the surface.

Gentleman 8 years ago 0

OK