Add Yahoo as a preferred source to see more of our stories on Google. A strand of hair contains three layers: the cuticle, cortex, and medulla. The design of the cuticle layer, in particular, is ...

The everyday tracking of health has become far easier these days with the advent of fitness watches and other technology. However, this is only the tip of the iceberg! Cardiovascular disease is one of ...

Have you ever felt "off" and gotten bloodwork done, only to find out your results were all within the "normal" range? That can often happen with seemingly unexplainable symptoms like fatigue and hair ...

In a study involving 11-year-olds, researchers have concluded that greater behavioral problems are linked to higher hair cortisol levels. The study also concluded that exposure to certain factors that ...