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For centuries the legend of the hair of people who turn white from fear has persisted. Notoriously, Marie Antoinette’s lush strawberry blonde locks were said to have turned white the night before her execution. Now new research, published in the journal Nature, suggests that extreme stress can actually cause hair pigmentation loss. Experiments conducted by a team from Harvard University have shown that extreme stress levels cause the sympathetic nervous system to become hyperactive, [...]

São Paulo, Brazil — People usually start gradually graying in their thirties. Once crossing the age of 50, one will be hard-pressed to successfully disguise one’s white hair crown without paying monthly visits to a hairdresser. However, medical reports suggest the process of hair colour loss, which scientists call canities or achromotrichia, can be greatly accelerated by persistent acute stress or severe trauma. Some historians have speculated that Marie Antoinette’s [...]

For centuries the legend of the hair of people who turn white from fear has persisted. Notoriously, Marie Antoinette’s lush strawberry blonde locks were said to have turned white the night before her execution. Now new research, published in the journal Nature, suggests that extreme stress can actually cause hair pigmentation loss. Experiments conducted by a team from Harvard University have shown that extreme stress levels cause the sympathetic nervous system to become hyperactive, [...]

Scientists believe they have uncovered “new evidence” that shows how acute stress can cause hair to turn white prematurely. Mice experiments have revealed that extreme levels of stress causes the sympathetic nervous system, which is responsible for the body’s rapid involuntary response to dangerous or stressful situations, to become hyperactive. This, in turn, drives the rapid depletion of stem cells responsible for hair colour, leading to pigment loss and development of [...]

Scientists believe they have uncovered “new evidence” that shows how acute stress can cause hair to turn white prematurely. Mice experiments have revealed that extreme levels of stress causes the sympathetic nervous system, which is responsible for the body’s rapid involuntary response to dangerous or stressful situations, to become hyperactive. This, in turn, drives the rapid depletion of stem cells responsible for hair colour, leading to pigment loss and development of [...]

Scientists believe they have uncovered “new evidence” that shows how acute stress can cause hair to turn white prematurely. Mice experiments have revealed that extreme levels of stress causes the sympathetic nervous system, which is responsible for the body’s rapid involuntary response to dangerous or stressful situations, to become hyperactive. This, in turn, drives the rapid depletion of stem cells responsible for hair colour, leading to pigment loss and development of [...]

Scientists believe they have uncovered “new evidence” that shows how acute stress can cause hair to turn white prematurely. Mice experiments have revealed that extreme levels of stress causes the sympathetic nervous system, which is responsible for the body’s rapid involuntary response to dangerous or stressful situations, to become hyperactive. This, in turn, drives the rapid depletion of stem cells responsible for hair colour, leading to pigment loss and development of [...]

Scientists believe they have uncovered “new evidence” that shows how acute stress can cause hair to turn white prematurely. Mice experiments have revealed that extreme levels of stress causes the sympathetic nervous system, which is responsible for the body’s rapid involuntary response to dangerous or stressful situations, to become hyperactive. This, in turn, drives the rapid depletion of stem cells responsible for hair colour, leading to pigment loss and development of [...]

Experiments performed by Brazilian scientists showed that Zika virus inhibits tumor cell proliferation even when inactivated by high temperature; the study was supported by FAPESP and published in Scientific Reports In experiments with a human prostate adenocarcinoma cell line (PC-3), the scientists found that Zika inhibits tumor cell proliferation even when inactivated by high temperature. Results of their research, which is supported by São Paulo Research Foundation – FAPESP, [...]