It's not just the body that follows a natural rhythm during the day. Our hair also has an internal "biological clock" that guides its cycle of growth, rest and regeneration. New scientific discoveries show that the cells that form hair respond to light, sleep time and the body's daily rhythm, directly affecting their thickness, shine and fall.

Research has found that stem cells in the hair follicle are most active at night when the body is in its deepest phase of regeneration. During the day, light and wakefulness hormones put the hair into a rhythm related to energy metabolism and protection from external factors. So, just as the skin repairs itself while we sleep, hair also uses the night hours to strengthen and renew itself.

This discovery explains why lack of sleep, constant stress and excessive exposure to artificial light can accelerate hair loss or weaken it. When the circadian rhythm is disrupted, hair cells lose their biological “compass” and cannot properly coordinate their life cycle.

For people looking to maintain hair health, these results underscore the importance of regular sleep and biological hygiene. Evening hours, quiet time, and consistent light cycles are just as important as proper nutrition and cosmetic treatments.

In an era where beauty care is increasingly merging with science, hair is no longer seen as just an aesthetic element, but as an indicator of our inner balance. Its hidden rhythm reminds us that harmony with nature and the body is the key to lasting beauty.

Photo by Element5 Digital: https://www.pexels.com/photo/woman-wearing-white-long-sleeved-shirt-973401/