5 Things Your Hair Can Tell You About Your Health

  • Δημοσιεύτηκε στις Πριν 3 μήνες

    SciShowSciShow

    διάρκεια: 10:11

    Your hair isn't just something you have to deal with every morning, it's a part of who you are, and there are things it can tell you about your personal health.
    Hosted by: Hank Green
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    Sources:
    Dandruff:
    www.ncbi.nlm.nih.gov/pmc/articles/PMC2923939/
    nationaleczema.org/eczema/types-of-eczema/seborrheic-dermatitis/
    www.ncbi.nlm.nih.gov/pmc/articles/PMC2923939/
    www.aad.org/public/diseases/scaly-skin/seborrheic-dermatitis#overview
    General hair loss:
    discovermagazine.com/2002/feb/featbiology
    jcs.biologists.org/content/119/3/391
    onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-4632.2005.02800.x
    uihc.org/health-topics/traction-alopecia-type-hair-loss
    www.aocd.org/page/telogeneffluviumha
    www.health.harvard.edu/a_to_z/telogen-effluvium-a-to-z
    www.ncbi.nlm.nih.gov/pmc/articles/PMC4606321/
    link.springer.com/chapter/10.1007/978-3-540-46911-7_13
    ghr.nlm.nih.gov/condition/androgenetic-alopecia
    Patchy hair loss:
    www.ncbi.nlm.nih.gov/pmc/articles/PMC3537782/
    www.aad.org/public/diseases/hair-and-scalp-problems/alopecia-areata
    www.mdedge.com/dermatology/article/67306/hair-nails/alopecia-association-sexually-transmitted-disease-review
    www.jaad.org/article/S0190-9622(09)00518-0/fulltext
    rarediseases.org/rare-diseases/alopecia-areata/
    www.ncbi.nlm.nih.gov/pubmed/26077574
    Unusual hair growth:
    rarediseases.info.nih.gov/diseases/2864/hypertrichosis-lanuginosa-acquired
    thejns.org/view/journals/j-neurosurg/129/1/article-p48.xml
    journals.sagepub.com/doi/abs/10.1177/1203475415582319
    www.ncbi.nlm.nih.gov/pmc/articles/PMC2836432/
    Thicker hair growth:
    www.mayoclinic.org/diseases-conditions/hirsutism/symptoms-causes/syc-20354935
    link.springer.com/chapter/10.1007%2F978-3-319-14863-2_17
    www.ncbi.nlm.nih.gov/pmc/articles/PMC2856356/
    obgyn.ucla.edu/hirsutism




    en.wikipedia.org/wiki/Hypertrichosis

    SciShow  science  Hank  Green  education  learn  hair  hygiene  baldness  bald  cradle cap  seborrheic dermatitis  sebaceous glands  sebum  Malassezia  anagen phase  catagen phase  telogen phase  alopecia  cytokine  telogen effluvium  T cells  lanugo hair  hirsutism  androgens  brush  beard  whisker  

Ali Bentz
Ali  Bentz

I had alopecia areata. It’s really embarrassing.

Πριν 16 ημέρες
rainynight02
rainynight02

Bio-sex females there's a stupid word again what female is not biologically female?

Πριν μήνα
Liusila
Liusila

7:30 wtf is this. I have tiny transparent hair pretty much everywhere. I’m not anorexic!

Πριν μήνα
Liusila
Liusila

I’ve had dandruff and an itchy spot on my head. It really doesn’t respond to any shampoo and I know it’s part of a bigger thing because when it gets worse a few other areas around my body get really dry and start to itch. Wtf.

Πριν μήνα
Willie Richard Johnson Projects
Willie Richard Johnson Projects

I started going bald at 16 or so

Πριν 2 μήνες
ღ Ashimari ღ
ღ Ashimari ღ

I leave the floor coated in hair wherever I go but I have a super thick coat of hair, even with shoulder length, it takes a ton for it to dry It's been months like this and no notorious change, but as the video says, probably has to do with Ballet hahah

Πριν 2 μήνες
MsMcmoe
MsMcmoe

Hmm, didn't hear it mentioned that a persons' thyroid may be out of balance, or there's a nutritional/vitamin deficiency .

Πριν 3 μήνες
Yo Soybean
Yo Soybean

My mom has alopecia, and she has no hair at all. I was wondering, is it genetic?

Πριν 3 μήνες
limpnjen
limpnjen

That first picture of the baby head made my skin crawl.

Πριν 3 μήνες
Mr Niceguy
Mr Niceguy

The title doesn't fit to the content. Should be... "5 (interesting) hair conditions"

Πριν 3 μήνες
Maurice Spence
Maurice Spence

I noticed I had alopecia areata after a visit to the barbershop. I thought I was aging way fast or something

Πριν 3 μήνες
Rachel Holt
Rachel Holt

Shedding more frequently can also be caused by thyroid imbalances

Πριν 3 μήνες
Morris Chen
Morris Chen

Thank you for using trans/gender-inclusive language!! This just made me love you and your channel even more (which I didn't know was possible)

Πριν 3 μήνες
Mathew Subritzky
Mathew Subritzky

hair loss can be a result of spinning on your head.

Πριν 3 μήνες
Lucia Jayne
Lucia Jayne

@sciShow ... about personal health ... what about a video in oil pulling. Is there science behind it?

Πριν 3 μήνες
Michael P.
Michael P.

Going through the ninth month of tellogen effluvium, the hair has still not recovered. I've learned my lesson with stress.

Πριν 3 μήνες
Letolz Velostoll
Letolz Velostoll

"menopause can affect someone's..." you can tell "menopause can affect a woman's..." is being avoided, because men can undergo menopause now.

Πριν 3 μήνες
Nightshade Kelly
Nightshade Kelly

Why does hair grow long on your head but not your arms and legs

Πριν 3 μήνες
Nightshade Kelly
Nightshade Kelly

Im 16 and have gray hair

Πριν 3 μήνες
Lio Jio
Lio Jio

more like 61

Πριν 3 μήνες
Nightshade Kelly
Nightshade Kelly

If goku or vegetas hair fell out it would be a nightmare

Πριν 3 μήνες
Professsor
Professsor

My scalp is itchy...

Πριν 3 μήνες
Elly Arrow
Elly Arrow

Omg, bio female... as in opposed to what... artifical females?? O.O

Πριν 3 μήνες
-
-

One time I suddenly developed alopecia barbae which caused a small, circular bald spot in my beard (which was still visible even after shaving because it was completely hairless) and it was caused by stress and went away after a while.

Πριν 3 μήνες
chad x
chad x

Right. So leave it to your incompetent doctor.

Πριν 3 μήνες
Hypatia Ravenclaw Sklodowska
Hypatia Ravenclaw Sklodowska

"your hair isn't just something that you have to deal with every morning" - first time someone accurately described hair imo

Πριν 3 μήνες
Rug46
Rug46

Where are my fellow red hair bois :P

Πριν 3 μήνες
Luka Cvitkovic
Luka Cvitkovic

Ah yes, seborrheic dermatitis, a simple spell, but quite unbreakable

Πριν 3 μήνες
DaBlondDude
DaBlondDude

Nice disclaimer lol, though kinda sad it's needed

Πριν 3 μήνες
Nishant Sengar
Nishant Sengar

Nicely explained, but what causes premature greying of hair, can that be treated? I have seen even the 5 years old kids start to have grey hair.. is it all diet dependent?

Πριν 3 μήνες
Nishant Sengar
Nishant Sengar

@gingergamergirl98 I thinks it's more to do with your diet, especially if it lacks vitamin b6, b12 and D..

Πριν 3 μήνες
gingergamergirl98
gingergamergirl98

Nishant Sengar AFAIK it’s genetic

Πριν 3 μήνες
Jeremy Pickett
Jeremy Pickett

Too many comments way funnier than me :) Thank you Sci, this happens to the best of us and shouldn't be feared. I had a severe health thing, three months later my hair fell out, three months after I am back to normal. Well, normalish :) Talk to your doc, and we dont judge.

Πριν 3 μήνες
Paul Sutherland
Paul Sutherland

He said "give you a heads up."😛🤤

Πριν 3 μήνες
blub232324
blub232324

2:20 looks almost like Matt Parker :)

Πριν 3 μήνες
edi
edi

Why are men and women storing fat differently. What´s the advantage of storing it mostly in the belly, rather than spread over a wider area? Since, we´re already on topic: why do many Afro-american women have butts that seem to defy gravity (not sagging, less bouncing and no moon-surface)?

Πριν 3 μήνες
Nikki Williamson
Nikki Williamson

My hair started falling out in 2017. It happened because I was very ill and on a lot of medications. I got better, came off the meds and it started to grow back thicker. Now I have a tonne of baby hairs that aren’t yet long enough to tie up but are long enough to get in my eyes...

Πριν 3 μήνες
Peldyn - Life with Cats
Peldyn - Life with Cats

I had a telogenic event and it was scary! Happened after I had a thyroidectomy. Lost most of my hair. Thankfully once my thyroid meds were adjusted my hair grew back.

Πριν 3 μήνες
IncontrovertibleTruth
IncontrovertibleTruth

Well many people look up things on the internet first because at least in America so many people can't afford health insurance also people want to be educated about what's going on with their bodies

Πριν 3 μήνες
TheSzyko
TheSzyko

Please make a video about why your turn down the music volume when backing into a parking lot ( and what science is behind it). Yeah for sure it´s because of focus, but why does everyone do it? Maybe there is more to it. Much love, thx for your show!

Πριν 3 μήνες
X3DN
X3DN

My hair is bleached and colored

Πριν 3 μήνες
Gibraltar
Gibraltar

Duuude my hair is so long and I am a boy....my hair is longer than 80 percent of my female class mates.

Πριν 3 μήνες
Tammy Stockley-loughlin
Tammy Stockley-loughlin

If you ever cut it off, consider donating it. Pay it forward in thanks for whatever it gave you. Personally i'm a fan of a good head of hair as long as it is clean.

Πριν 23 ημέρες
Ibolya Szijgyarto
Ibolya Szijgyarto

Traction alopecia *cough*Jojo Siwa*cough*

Πριν 3 μήνες
veksu9
veksu9

Dandruff is caused by fungus. In special shampoos there are ingredients which kill those microorganisms. You are missleading people...

Πριν 3 μήνες
Jamail44
Jamail44

I have really really bad dandruff, even if I wash my hair.

Πριν 3 μήνες
Sharon Johnston
Sharon Johnston

I actually have alopecia areata I always thought it was stress related. My dads a barber and in barber college he learned about hair disease and the way hair grows and he told me what it was and that it’s mostly stress related and it’ll grow back so I never really looked in to it I mean it’s probably only happened like 4 or 5 times in 3 years.

Πριν 3 μήνες
Catryn
Catryn

And here I am with my trichotillimaniac hands

Πριν 3 μήνες
pyukumuku 95
pyukumuku 95

My hair told me it was too hot so i cut it off. Im bald now.

Πριν 3 μήνες
David Oh
David Oh

I’ve noticed that ever since I started growing my hair longer, I’ve been losing a SIGNIFICANT amount of hair daily. I’m a male. Does anyone know why?

Πριν 3 μήνες
Chapter Eleven
Chapter Eleven

me, with an oily scalp and dandruff: sigh

Πριν 3 μήνες
Feral Crafter
Feral Crafter

Every time I go to a doctor, I'm billed thousands of dollars for a diagnosis of "I don't know" .... Sooo why go to a doctor?

Πριν 3 μήνες
Ico
Ico

Sometimes I get extremely stiff, translucent hairs on my arms (only ever noticed it on my arms) that are very easy to pull out and sometimes there’s are multiple coming from the same follicle. Does anyone know what this is or what causes it?

Πριν 3 μήνες
Rachel Swanson
Rachel Swanson

I have dandruff. It started around 12 years of age. I've tried all kinds of dandruff shampoos none work. I have to only shampoo my hair once a week sometimes twice. I use shampoos for Africans because they're not as drying on my scalp. I also have to oil my hair once a week to two weeks. My son whose reaching 12 years old just developed dandruff too. I think its a hormonal thing rather than a fungus thing as you mentioned. Why would it only start around the time hormones change in a person's body? I'm so tired of dealing with dandruff.

Πριν 3 μήνες

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