Lack of sleep will not directly lead to hair loss. Lack of sleep is the cause of hair loss, but not all people who lack sleep will lose hair. Some people are used to sleeping for four or five hours a day without losing their hair. Hair loss is the result of many factors, such as endocrine abnormalities, excessive mental stress, developmental defects, some systemic or local diseases and so on. So hair loss is not directly caused by lack of sleep.
Why do some people lose their hair when they stay up late? It is mainly caused by mental stress. People who stay up late watching TV, playing games, reviewing and working overtime are prone to mental stress. Long-term mental stress will not only lead to local blood circulation disorder in the head, but also lead to excessive secretion of sebaceous glands in the head, inhibit hair growth, and increase the risk of messy hair and hair loss at rest, so lack of sleep will not lead to hair loss. In fact, this is the influence of mental pressure behind it.
Warm reminder: lack of sleep will not directly lead to hair loss, which will lead to greater mental stress behind hair loss. Of course, staying up late will cause mental stress, so occasional lack of sleep will lead to hair loss, but long-term lack of sleep will lead to hair loss, so good work and rest is very important for hair health, and good sleep habits should be developed.