The idea that an emotionally traumatic event or period of intense stress can cause hair greying is widespread.
These cells are linked with neurons from the sympathetic nervous system. The neurons release the neurotransmitter norepinephrine during moments of stress or fear. Normally, these stem cells stay dormant until a new hair is being produced. Once the store of melanocyte stem cells has run out, creation of pigment in the follicle bulbs is no longer possible.In order to verify their hypothesis and attempt to counter these effects, the researchers administered a treatment for high blood pressure in order to block the action of norepinephrine, which prevented the appearance of grey or white hairs on the mice.
Self-doubt & fear will render you stagnant, while a strong belief in your talent will motivate you as you courageously follow your dreams. -Jonathan Alpert
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