The Science behind Hair Growth
The Science behind Hair Growth
Have you ever wondered why we have hair? Why is our body full of hair? Some parts have it long while some areas may only have a slight peek of hair. Much like how some animals are furry, we too are covered in our very own hair. Putting it simply, our hairs are there to protect us from our environment. But if you still want a thorough explanation about how and why our hair grows, then read more. Let us explain the science behind hair growth plus other more facts about it.
How Does Hair Grow?
Hair grows out of little pockets all over our skin, called the follicles. Here's how it happens:
1. Our hair begins to grow from a root in the bottom of the follicle. The follicle is a small secretory cavity, sac, or gland located on our bodies. Meanwhile, the root in the bottom of it is made up of cells of protein.
2. Blood from the blood vessels in our scalp continually feeds the root, which in turn creates more and more cells and makes the hair grow.
3. The hair gets pushed up through the skin as it becomes, passing an oil gland along the way. The oil gland adds oil to the hair which keeps it shiny and soft. Although, it can make it greasy, too. That's why you need to wash your hair regularly using various hair products such as shampoo and conditioners.
4. The hair is already dead by the time it is long enough to poke out through the skin. Yes, all the hair currently in your head and body is dead. So do not get too sentimental anymore about getting a haircut.
The hair on the rest of your body goes through this same process, but the whole cycle only lasts for a month or so. That's why body hair does not grow very long as the hair on your head does. And that is how our hair grows, from just being a root in our follicles to the ones now poking out of our skins. That is the brief scientific description about it, but here are more facts about our hairs:
- The moment you are born, you already have the total number of follicles you will ever have in your entire lifetime. 5 million follicles.
- Your head, specifically your scalp, has 100,000 of these said follicles in it. No wonder, we have great hair.
- Male hair grows exponentially faster than that of the female. Hair generally grows fast; only our bone marrows grow faster. The hair on your head grows about 6 inches a year. So, even though it's one of the fastest-growing things on your body, it still takes a while to develop it long.
- You lose about 50 – 100 hairs every single day. Not all follicles grow hair at the exact same time. Each scalp follicle becomes hair for a few years and then takes a break. The hair falls out along with the breaking of the follicle. So do not be afraid when your shower floor has tons of hair.
- Some of the follicles on our body stop producing hair as you get older. This happens more in some people than in others. That is the reason why our hair grows thinner or ultimately goes bald when we get old.
These are the things you should know about hair growth. These facts will give you enough enlightenment as to the explanation behind the development of hair in your body.
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- Princess Marasigan