Do long-lived old people have long eyebrows? What are the reasons for the lengthening and shedding of eyebrows?

There has always been a saying in China that long eyebrows live longer. We can often see suitable experts in TV dramas or novels, and they are all long-bearded figures. This seems to confirm the view that long eyebrows are longevity. Others believe that eyebrows can not only show a person's lifespan, but also a person's health. Many elderly people are also proud of their long beards.

There is a 95-year-old man with white eyebrows in Sichuan who not only has white eyebrows, but is also longer than ordinary people, even more than 10 centimeters. The locals firmly believe that long eyebrows are the secret of longevity for the elderly.

So, do eyebrows represent longevity?

According to a survey by a research institute in Changsha, the eyebrows of the long-lived elderly only account for about 5% of the total population. Most older adults do not have the characteristic of long eyebrows. From this data survey, it can be seen that long eyebrows do not bring health and longevity to themselves. This may just be a natural physiological phenomenon. It is incorrect that long eyebrows seem to represent longevity.

Since eyebrow length has nothing to do with lifespan, what causes eyebrow length and shortness? Don't worry, let's move on.

What does the length of the eyebrows depend on?

Metabolic cycle determines eyebrow length

The growth cycle of eyebrows is usually only three to four months. A normal adult will renew her eyebrows every three months. The length of the eyebrows can generally reach about 0.7 cm. Due to the short shedding time and fast renewal rate, most people's eyebrows cannot grow out like rabbit tails. The elderly have slow metabolism, long eyebrow growth cycle, decreased frequency of shedding and replacement, and long eyebrow preservation time. Therefore, the elderly with long eyebrows can live longer, which is a natural physiological phenomenon.

Genetic factors affect eyebrow length

The length of your eyebrows is also related to your genes. If your parents or grandparents also have long eyebrows, your eyebrows may be stronger than normal. It is common in father-to-son transmission. If your family has such genetic factors, congratulations, maybe you can have two long eyebrows too.

Hormone secretion stimulation affects length

Men are more likely to have long eyebrows than women. The reason is that male hormones are more abundant than females, and male hormones promote hair growth . Boys' eyebrows are more likely to grow and grow longer than girls.

Eyebrow length is linked to hair follicles

If your body is not getting enough nutrients, the ratio of nutrients to the hair follicles will drop, which can also lead to short eyebrows. Sometimes the quality of the hair follicles also affects the length of the eyebrows.

Through the above analysis, we can conclude that the length of eyebrows depends not only on genes, hair follicle quality, human hormone content, but also on its natural metabolic laws. We can also observe our health by the growth of our eyebrows. If there are any of the following conditions, we should pay attention to whether there is a problem with our body.