American scientists have been astonished to find the cause of ..

Scientists have now discovered the reason why hairs stand on end when watching a scene or a scene from a movie.

According to media reports, scientists at Harvard University in the United States say that the types of cells that cause hair to stand on end also play an important role in regulating hair roots and hair stem cells.

These nerves respond to muscle tension in the cold and cause the hair to stand on end for a while while stimulating the growth of new hair on a long-term basis along with the hair roots.