Can Stress Put Gray Hair From Night To Morning?

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Can stress put gray hair overnight? A: No, but some diseases if they can put gray hair in a short time.

Legend has it that while Marie Antoinette, the queen of France, was waiting for her fatal date with the guillotine, her hair turned white overnight.

The myth that extreme stress can fill your head with gray hair in just one night has been around for a long time but there is not a single bit of scientific research to back it up.
Hair color is determined by the amount of melanin pigments produced by stem cells called melanocytes. There are two types of melanin: eumelanin (dark brown or black) and pheomelanin (blond yellow to red). At the end of the active phase of hair growth, the basic components of hair in the follicle – keratinocytes and melanocytes – die. As one ages, fewer melanocytes are substituted. The new hair that grows from these follicles are depigmented and appear gray or white.

Now, even if the stress caused a new hair to grow from the colorless follicle (gray or white), there is no way for all the hair on the head to change color during the night, without resorting to a bottle of hair dye . However, there are some medical conditions – such as alopecia areata – that very rarely, can leave the person with depigmented hair (gray or white).
Alopecia areata is an auto-immune disease that attacks the hair follicle and leads to hair loss. This is a relatively common disease that affects about 1% of the population, and hair loss can occur very quickly. In a very rare subtype of this condition, all pigmented hairs fall off, leaving the person with gray hair only. The appearance is surprising and fast because during the night someone can go from having normal hair and only white hair dawn, but this is not caused by stress – this is a self-immune condition and there is a disease behind the phenomenon. Hair loss due to alopecia areata is often reversible, but sometimes when the hair grows back the resulting hairs will be depigmented.
There are also other conditions, such as vitiligo (an autoimmune disease that also attacks the pigment cells and can cause the skin and hair to turn white), or rare genetic disorders, such as piebaldism and Waardenburg syndrome, They can cause a single streak of white hair – but none of them occur during a single night.
So how do you explain that, even without these diseases, some people seem to turn gray so quickly? What refers to hair color has to do with genetics, and, for the time being, there are no clinical studies that support the opinion that stress plays any role in the process.
When it comes to gray or white hair, it seems that there are only two things that can be done: appreciate the silver reflections or look for a hair dye!

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