Table of contents:
- Facts about hair you need to know
- 1. Why are babies born with hair already?
- 2. Why does everyone have different hair?
- 3. Why are human hair different colors?
- 4. How many hairs do you grow each year?
- 5. Why can hair be oily?
- 6. Why does hair fall out?
- 7. Why does baldness occur?
- 8. Why is the hair on other parts of the body shorter than the hair on the head?
Hair is a "crown" that plays a role in beautifying the appearance of both men and women. Well-groomed hair will make a person look more attractive, so it's not uncommon for many men or women to do hair care to maintain its beauty. Unfortunately, not everyone knows the facts about hair; including about why there are many variations in the color and shape of human hair, the number of hair strands, since when humans have hair, and so on.
Facts about hair you need to know
Here are some hair facts you need to know:
1. Why are babies born with hair already?
You don't need to be surprised if you see newborns already have hair. Due to the fact, hair growth has already started when the baby is in the womb. At the 22nd week, the developing fetus in the womb has approximately 5 million hair follicles, which are the skin structures where hair will grow.
2. Why does everyone have different hair?
You may wonder why some people have straight, wavy, curly, thick, thin, fine, or coarse hair. The determinant is the shape of your hair follicles; which is influenced by genes obtained from parents.
3. Why are human hair different colors?
Hair colors in the world vary, some are black, blonde, brown, red, and others. This is influenced by the amount of melanin or pigment in the hair. Because, the more melanin in your hair, the darker your hair color. However, the amount of melanin can decrease with age; so you don't need to be surprised if many people who get older have gray hair in their hair.
4. How many hairs do you grow each year?
Hair is the second body part that grows very quickly after the spinal cord, which is about 15 cm per year. Actually, everyone's hair growth is different, influenced by genetic factors and the anagen phase. The anagen phase is the phase in which protein enters the hair roots and collects cells which form a rope-shaped structure known as hair. The longer the anagen phase, the longer the hair grows every year.
5. Why can hair be oily?
The reason is because as it grows, hair passes through the oil glands throughout its travel phase. The oil glands add oil to your hair and keep it shiny and soft. This is also the reason why you need to wash your hair or shampoo at least once every two days, otherwise, don't be surprised if your hair becomes limp or very oily.
6. Why does hair fall out?
Among 100,000 hairs owned by humans, 100 hairs will fall out every day. This loss is caused by the hair follicles that are resting for a while, so the hair in the follicles will fall out. Because the follicle is resting at different times and the rest of the hair continues to grow, you are less likely to notice the loss. You also don't need to worry, because the hair that falls out will grow back.
However, if there is a lot of hair loss, then you need to consult a doctor to find out the cause and get the right treatment.
7. Why does baldness occur?
For some people, the follicles will stop growing hair as they get older; so they tend to have thinner hair or go bald.
8. Why is the hair on other parts of the body shorter than the hair on the head?
The reason is because the anagen phase in the hands and other parts of the body lasts only a matter of weeks, while in the head it lasts for years.