That's why you need to wash your hair. The hair dies by the time it is long enough to poke out through the skin. Yes, hair is dead. That's why it doesn't hurt to get a haircut. 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 in length like the hair on your head does. Hair grows very fast and male hair grows faster than female hair.
The only part of your body that grows faster is bone marrow, the soft stuff inside your bones. 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 takes a while to grow it really long. Some follicles stop growing hair as you get older.
This happens more in some people than in others. That's why some people get thinner hair when they get older, or go bald. Thicker, denser hair helps hold on to that scent and then disperse it. So our moist hairy regions may help in attracting mates.
Once that work is done, the hair could also be doing double duty, by preventing chafing when we're on the move and even potentially cushioning and protecting our delicate bits from infection during sex.
Physiologically, it's simple: Men are hairier than women because they have more androgenic hormones in their bodymore androgens, more noticeable androgenic hair. But there still are plenty of hypotheses that try to delve deeper into behavioral drivers for mane maintenance. Possibly females prefer males with fuller beards because they read it as a sign of virility. Possibly they like stubble. Possibly males prefer women to be less-hairy because it's a trait associated with juvenile featurespossibly not.
By and large, though, these are "just-so" stories, common to evolutionary biology, which haven't been tested in modern humans. What we do know for sure is that humans' site-specific hairiness forced us into new forms of communication. Now that we can't raise our hackles or use coat patterns to signal who we are, we've lost a powerfuland badassway to send messages about who we are and what we're feeling. Instead, we'll have to be content with piercings, tattoos, makeup Losing our hair didn't just cool us down.
It made us the people we are today. Danielle Venton is a science writer who fosters a special love for bugs, plants, mountains, books and gorgeous space photos. Contributor Twitter. Thank you for checking out today's Wonder and letting us know what you thought by leaving us a comment. You ROCK!
All hair is dead, so even though he is a baby, his hair is dead. We're really not sure what the answer to your question is. We encourage you to think of a way you could answer this question on your own. Who could you ask that might be an expert? What could you read that might help answer your question? Hey there, Wonder Friend Logan!
Thanks for sharing your thoughts about today's Wonder with us. We do know that they sell special shampoo to help out with dandruff. We're not sure how well it works. You'll have to try it out and let us know. We're not sure how old you are, but you won't get facial hair until you are a teenager.
Hello, Wonder Friend We're! Thank you for visiting Wonderopolis and commenting today. The hair isn't made out of dead skin. Hair is made of a protein called keratin. This is also the protein your toenails and fingernails are made of. We're glad that you learned something new today! We're glad we helped you find the answers to your question!
Great, Madelyn! It sounds like you learned a lot from this Wonder! Hi, Medeau and Emily! We are so glad that you enjoyed this Wonder Video! Way to go, Wonder Friend! What if YOU discovered a dinosaur? Would you name it Emilyosaur?! We think that would be great name!
We are glad you shared your comment - did you learn something new from our Wonder? Perhaps you can find an awesome Wonder video for this hair growing Wonder and post it to the Wonder Wall! Sure thing, Advecia! Thanks for sharing your comment! Thanks for your great comment, Dominion! Thanks for sharing what you learned! It makes us super happy to hear that, Banks!
Thanks for hanging out in Wonderopolis today and letting us know what you thought about the video for today's Wonder! Hello, Horse Girl! Here are a few past Wonders of the Day we think you might enjoy! Wonder - Are Horses Predators or Prey? Thanks for sharing what you think Rashell was talking about in the comment, Wonder Friend!
Good morning, Ms. We will all have to try to learn some more fun, new facts about hair now! Hi, Rashell! Hair grows at a rate of about a half-inch per month for most people, and you're right! Hair does have roots! Thanks for exploring today's Wonder! Some hair products claim to help your hair grow faster, but we can't say for sure which ones work if any! Thank you for sharing your thoughts about what makes hair grow, Kelly!
We're SO glad that you stopped by Wonderopolis, Lauren! We hope you learned some cool new facts about hair today. We think it's super fun to learn about the planets even the ones that aren't really considered planets anymore , the moon, the stars Happy Saturday, Paige!
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We sent you SMS, for complete subscription please reply. Follow Twitter Instagram Facebook. What makes hair grow? How many hairs fall out every day? How long would your hair grow if you never cut it? Tags: See All Tags anagen , care , characteristic , clean , conditioner , cycle , defining , follicle , gland , grow , growth , hair , keratin , oil , product , protein , root , sebaceous , shaft , shampoo , telogen , wash.
Wonder What's Next? Can the air you breathe make things change colors? Find out tomorrow in Wonderopolis! Get a few friends or family members to be a part of a group as you comb through the following activities: What color hair do you have? What about your parents and siblings? For fun, do a scientific study of the hair colors of your classmates. Observe all of your classmates and record the hair color of each individual.
Don't forget to include yourself! If you can, make a chart showing how many of each hair color is represented by the kids in your class! Ready to learn how to take care of your hair? The main part of taking good care of your hair is keeping it clean. Some people might wash their hair every day, while others might only wash their hair once or twice a week. How often you need to wash your hair depends upon your particular hair and what you've been doing. If your hair has lots of natural oils, you may need to wash it daily to keep it clean.
Likewise, if you exercise or go swimming often, you'll need to wash your hair more frequently. When you wash your hair, use a gentle shampoo and warm water. Gently massage your hair with your fingertips to make sure you get all of your hair clean.
You might also want to use a separate conditioner or a shampoo that includes conditioner. Conditioner helps to untangle your hair and makes it look smooth.
If your hair already has lots of natural oils, you might not need conditioner, especially if conditioner makes your hair look flat or greasy. Gently dry your hair with a towel and then use a comb to remove any tangles.
Always be gentle with your hair. Avoid yanking your hair when you're trying to untangle it. If you want to curl or blow dry your hair, make sure you ask an adult for help, as curling irons and blow dryers get very hot and can be dangerous if you're not careful. They can also damage your hair if you don't use them properly. Up for a challenge? Using your family members including yourself! If everyone agrees, you could even go out to get haircuts as a group before you start this project.
You'll need to keep a close record of the starting date and how long each person's hair is at the start. It's up to you how you measure. Do whatever is easiest for you. Just make sure you use the same measurement method each time, so that your results will be consistent. Over the next several weeks, measure each person's hair again and record the results. Set a certain time period for your study, such as two months. At the end of your study, calculate your results. Whose hair grew the fastest?
Can you point to any reason that one person's hair grew faster than another? Try to separate out factors that may have contributed to particularly fast or slow hair growth. For example, did everyone use the same hair care products? Did age or sex seem to play a role? What conclusions can you draw from your findings? Did you get it? Test your knowledge.
Wonder Words hair grow root shaft facial prominent burdensome characteristic protein follicle sebaceous anagen telogen keratin Take the Wonder Word Challenge. Join the Discussion. Apr 25, Terryl Jun 7, This helped. Mar 15, Hey, Wonder Friend!
Jun 11, Feb 5, I know how the hair grows a researched it a bit ago!!! It begins at a root at the bottem of a follicule. This root is made up of protein. There are blood vessels in your scalp. The blood from that feeds your root and that makes a hair. The hair grows by having skin mollicules pushed and that makes your hair grow!
Apr 14, I didn't know all of this! Jan 5, Lucy Oct 5,
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