Diagnosing Vitamin Deficiencies Through Your Tears!

So this is really cool! Scientists are developing ways to diagnose vitamin deficiencies through your tears! They are especially focused on children, for whom vitamin deficiencies can have a significant negative impact on their growth and development. Also of interest is a way to test quickly, simply, and easily long before physical symptoms manifest, because if you can catch the deficiency when it’s still moderate and before physical symptoms have occurred, obviously you can get better health...