Humor Magazine

How Hair Turns Gray

By Gerard @presurfer
How Hair Turns Grayimage credit
We've all heard it before: Too much stress will give you gray hair. While there seems to be some truth to that theory, the science behind our silvery strands remained a mystery until now.
While examining interactions between two types of stem cells, a group led by New York University School of Medicine researchers discovered that the cells' collaboration through a specific signal determines pigmentation in hair follicles.The Presurfer

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