When you get a blood test you be in some serious pain, and this pain may contain some tears. You may think your tears are useless, but they are not useless at all. They have vitamins and in the future may be used to test certain aspects about the body. Researcher are looking at the use of these tears.

Key Takeaways:

• Your body cannot manufacture vitamins, and vitamins reflect available food sources in your body. That’s what makes them good indicators of nutritional health.
• They tested tear samples and blood samples from 15 four-month-old infants and their parents.
• Generally, there is a connection between parents and babies and the team showed a correlation between vitamins E and B. Formula-fed babies were the exception, with notably higher levels of B vitamins.

“Maryam Khaksari, a research specialist at the Chemical Advanced Resolution Methods (ChARM) Laboratory at Michigan Tech, is the lead author of a paper on the subject recently published in Experimental Eye Research.”

https://www.sciencedaily.com/releases/2017/01/170112141309.htm