This is why stress causes your hair to dry out

Photo: Peter Dazeley (Getty Images)

Scientists at Harvard University say that they may have discovered that stress can cause hair loss. They found evidence that a major stress hormone in rats made it difficult for hair follicles to regenerate. The findings may one day lead to more effective treatments for hair loss, although further research is still needed.

There are many Evidence Link anxiety to high risk of hair loss. Sometimes even a traumatic event in life is thought to trigger the episodes of hair loss effluvium telogen. And last year, experts estimated this Epidemic-related stress It is a major contributor to hair loss, even among people who do not have CV-19.

Cortisol, commonly known as stress hormone, is a major cause of hair loss. This new study, Published In nature, on Wednesday, he tried to ridicule the possible causes of cortisol-related hair loss. They have been tested in mice because they produce very similar corticosteroids (this hormone is also produced in small amounts in humans, but does not play a major role in our stress response).

The hair follicles that grow out of our scalp usually grow into two main stages – growth and relaxation. During growth, the hair follicles become mature, which regenerates the follicles and allows new hair follicles to grow. During the rest period, the stem cells remain asleep, and eventually, hair follicles flow through these follicles. Normally, as our hair falls out, a new thread appears to replace it. But when the rest period is longer than usual or the hair follicles simply stop being regenerated, we get hair loss.

In these mice, the researchers found that constant stress prolongs the rest of the hair cells. The mice were able to replicate the same effect when they took artificial high hormones. And when the rats stopped producing hormones, their hair follicles had very short breaks and continued to function without any obstacles, allowing the rats to grow hair even in old age.

“These high levels of stress hormones actually have a negative effect on hair follicle stem cells,” says Ya-Chih Hussein, a Harvard cell researcher. Press release Released at the university.

The team’s past work has also indicated that it could be stressful Contribute It affects the cells in the vicinity and is likely to cause gray hair. But the effects of stress on hair loss and gray hair do not seem to be the same.

Other researchers suggest that the hormone plays an important role in nourishing and rejuvenating the follicle, affecting the dermal papilla in the hair follicles. In these cells, the hormone stops the production of a gas molecule called 6, which is essential for keeping our hair intact.

“Adding gas 6 was enough to stimulate the hair follicle stem cells that were at rest during normal and stressful conditions and to promote hair growth,” Choi said. “The future 6 gas pathways can be used to stimulate hair growth by stimulating stem cells. If other stress-related tissue changes are related to the regulation of stress hormone gas 6, it will be interesting to explore.

Mice are not really human. So while these findings may be interesting, it will take a long time to determine if the exact same methods of stress-related hair loss are definitely applicable to us and whether Gas 6 can be used to prolong hair growth in the years to come. But if you are worried about thinning hair, managing stress can be a way to keep your hair flowing.