they say the eyes are the window to the soul, but they are also a wondow to your gene. Your iris regulates how much light enters your eye and protects internal organs from harmful UV radiation. But why exactly are irises colored? Find the answer here in this interesting infographic:
Inspiration
About Floss and Dental Health
I do realize this poster is kind of a glorified ad, it still contains a lot of useful information so please do not be too
PositiveMed Team
Feb 26, 2013
