Contents:
- Medical Video: 20 Interesting Facts You're Too Lazy to Google
- Facts about hair that you need to know
- 1. Why do babies have hair?
- 2. Why does everyone have different hair?
- 3. Why do human hair colors vary?
- 4. How many strands of hair grow each year?
- 5. Why can hair be oily?
- 6. Why can hair fall out?
- 7. Why can baldness occur?
- 8. Why are the hairs on other body parts shorter than the hair on the head?
Medical Video: 20 Interesting Facts You're Too Lazy to Google
Hair is a "crown" that plays a role in beautifying the appearance of men and women. Well-maintained hair will make someone look more attractive, so it is not uncommon for many men or women to do hair care to maintain its beauty. Unfortunately, not everyone knows facts about hair; including about why many variations in color and shape in human hair, the number of strands of hair, since when humans have hair, and so on.
Facts about hair that you need to know
Here are some hair facts that you need to know:
1. Why do babies have hair?
You need not be surprised if you see a newborn baby already has hair. Because of the fact, hair growth has begun when the baby is in the womb. At week 22, the developing fetus in the womb already has about 5 million hair follicles, which is the structure of the skin where the hair will grow.
2. Why does everyone have different hair?
You might be surprised, why do some people have straight, wavy, curly, thick, thin, smooth, or rough hair. The determination is the shape of your hair follicle; which is influenced by genes obtained from parents.
3. Why do human hair colors vary?
Hair colors in the world are different, 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 will be. However, the amount of melanin can decrease with age; so you don't need to be surprised if many people who grow old have gray hair in their hair.
4. How many strands of hair grow each year?
Hair is the second body part that grows very fast after the spinal cord, which is around 15 cm per year. Actually, each person's hair growth varies, influenced by genetic factors and the anagen phase. Anagen phase is the phase in which protein enters the hair root and collects cells that form a rope-shaped structure known as hair. The longer the anagen phase, the more hair grows every year.
5. Why can hair be oily?
The reason is because when it grows, the hair passes through the oil glands throughout the trip phase. The oil gland will add oil to the hair and make it still shiny and soft. This is also the reason why you need to wash your hair or wash it at least every other day, because if you don't, don't be surprised if your hair becomes flat or very oily.
6. Why can hair fall out?
Among the 100,000 hairs that humans have, 100 hairs will fall out every day. This loss is caused by hair follicles that are resting for a while, so the hair in the follicle will fall out. Because follicles rest at different times and other hairs continue 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 can baldness occur?
For some people, follicles will stop growing hair when they get older; so they tend to have thinner hair or baldness.
8. Why are the hairs on other body parts shorter than the hair on the head?
The reason is because the anagen phase in the hands and other parts of the body only lasts for weeks, while the head lasts for years.
