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Understanding The Hair Growth Cycle | Adam Explains 

Adam Explains
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This video covers the four phases of the hair growth cycle in detail and explains what to expect in each.
We shed hairs on a regular basis as many as 50-100 per day so it should come as no surprise that despite being intrinsically dead, hair has a life cycle. The hair growing currently is not the same hair you were born with. In fact, like many mammals, Humans even have seasonal shedding particularly in the Autumn according to Swedish researchers.
Before we continue - It should be noted that the hair follicle exists below the skin Therefore trimming or shaving which are just acts of cutting hair to an arbitrary length will not change or affect the growth cycle of your hair. Plucking, waxing or threading, however, will affect this growth cycle.
In the hair growth cycle, there are four states, Anagen, Catagen, Telogen, and Exogen.
Anagen is the state in which hair actually grows, the rate of which is 0.5 inches per month on average. The amount of timer a hair will remain in the anagen phase will vary from person to person although scientists estimate between 4-6 years for scalp hair. Body hair is said to have shorter anagen phases. The anagen phase is particularly interesting depending on the type of follicle you are studying. In men and women with androgenic alopecia, the hormone Dihydrotestosterone shortens the anagen phase and miniaturizes the follicles on the vertex of the scalp whereas androgenic hair such as chest hair and beards are dependent upon Dihydrotestosterone to grow. The anagen phase can also be cut short through a number of factors including stress, poor diet, and ageing. Once the Anagen Phase Ends the Catagen Phase Begins
The Catagen phase refers to the period of time in which the hair detaches from the blood vessels and dermal papilla and the hair stops growing as the blood flow is removed depriving the follicle of much-needed oxygen and nutrients to grow the hair. This lasts for approximately two weeks and acts as a catalyst for the next phase - Telogen
The Telogen phase is where the follicle rests for approximately 3 months before starting the Anagen phase again. In rare circumstances, people can suffer what is known as Telogen Effluvium which is the noticeable thinning caused by long severe daily shedding periods and a longer telogen phase which may be a result of poor diet, stress, deficiencies in vitamins and minerals or a combination of all of the above. However usually after three months, the Exogen Phase will start.
The Exogen Phase which is actually just an extension of the telogen phase is where the hair sheds and new hair simultaneously starts to grow and begin a new anagen period. As mentioned previously you can shed up to 100 hairs a day and not even notice. You are probably wondering why you aren’t going completely bald every few years for a three month period - Well each hair follicle is a complex mini organ that has its own biological clock and is independent so whilst some will be synchronized simply by coincidence it would be incredibly rare for all to synchronize completely.
As stated previously shedding is an ongoing process and may be seasonal and indeed even gender dependent as Research suggests that women experience slightly higher rates of telogen than Men do during July, which sees the telogen hairs falling out over 3 months later, in mid-October or November. The reason for this is unclear, but some suggest that the summer heat may provide some explanation.
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22 авг 2024

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Комментарии : 76   
@AdamExplains
@AdamExplains 6 лет назад
Hi Viewer. Thanks for taking the time to watch my first video! Whilst I have got you here I would really appreciate any suggestions for things you want to see explained! I already have so many ideas but a few more cant hurt! Also its effluivum not Effluviam... excuse the typo in the video! Thanks in advance, and have a great day!
@nicolehumble8526
@nicolehumble8526 3 года назад
Thank you so much! What can we do to increase the anagen phase for faster hair growth?
@b.v3151
@b.v3151 4 года назад
Play It at 75 speed. Works fine
@AaliyaJoshi89
@AaliyaJoshi89 6 дней назад
Cleanse hair with lukewarm water, Use a satin or silk scarf while sleeping, Wash hair with diluted apple cider vinegar for shine, Apply littllextraa cocoonnnion shampoo and lightweight hair oil. This worked for my mom, and she controlled her hair fall with this routine.
@priyaSGPCS2
@priyaSGPCS2 3 дня назад
I’ve been dealing with hair fall for a long time and used many solutions with limited results. A buddy like you told me about this cocooniion shampoo, and after sticking with it, I can see a real difference. My hair fall has reduced a lot.
@zoeysolace9088
@zoeysolace9088 4 года назад
Thank you so much for making this video. I just really hate studying. I have to studying for my hairdressing course. This video helped. Thank you SO MUCH for making this video. ❤️ ❤️ ❤️
@katerinarich9626
@katerinarich9626 2 года назад
I’m a woman in November shedding worse than a dog thinking I’ll be bald by Christmas lol this gave me hope thanks!
@salty8637
@salty8637 5 лет назад
This helped me a lot! Who knew I could get a bunch of information from a video. Thanks!
@haneen9445
@haneen9445 5 лет назад
Fully informative , but u r talking so fast like if I watch the video with 2x speed ! In general I like it 👌🏻
@AdamExplains
@AdamExplains 4 года назад
Apologies if I am talking too quickly. You can change your settings on RU-vid to play it slower. This may help in this instance... I will try be slower on my next video (whenever I get around to doing that)
@AlohaPanda
@AlohaPanda 4 года назад
I think it’s a good speed, perfect speed for me.
@samahamara8543
@samahamara8543 5 лет назад
Wow man that's great great content !
@Myfamilyvibez
@Myfamilyvibez 3 года назад
Never heard of the exogen phase in beauty school
@jktm9441
@jktm9441 5 лет назад
So I’m not loosing my hair ?
@bekah9353
@bekah9353 2 года назад
Great video!! Can you explain the scalp pain associated with Telogen effluvium?
@haythamaltalib2984
@haythamaltalib2984 Год назад
thank you for this wonderful video and it was super useful to add the scripts bellow the vid
@ginauren9347
@ginauren9347 4 года назад
Great information, but far too fast!
@AdamExplains
@AdamExplains 4 года назад
Apologies if I am talking too quickly. You can change your settings on RU-vid to play it slower. This may help in this instance... I will try be slower on my next video (whenever I get around to doing that)
@BigwiPlayss
@BigwiPlayss 3 года назад
And here i fast forwarded the fast video tl see it faster😂
@nauticalmiles5541
@nauticalmiles5541 2 года назад
@@AdamExplains nah man you're great and I appreciate your swiftyness. You're breaking down phases of biochemistry in a 3 minute video and still making it digestsble. I believe people should lower their expectations if they have a problem with your length. Gratitude always sir 🙏🏽 thank you for the exposure and energy to get my ass up and researching for my own betterment.
@supernek0
@supernek0 Год назад
You can make it slower.
@spencerdavis5056
@spencerdavis5056 2 года назад
This was very informative. Thank you!
@kenrutherford1109
@kenrutherford1109 Год назад
I shed hair on a regular basis. As a matter of fact, I find a lot of it in my shower!
@majdhaddad6184
@majdhaddad6184 2 года назад
The anagen phase continues for approximately 5 years, the hair grows 1cm per month, which means 60cm in 5 years. Every 5 years the hair will fall out and a new one will start growing instead of the falling one, which will eventually fall after 5 years (60cm). Does that mean that there is a limit of length that the hair cannot exceed?? This can't be true..
@AdamExplains
@AdamExplains 2 года назад
Well... the hair cycle is true so not exactly sure what to tell you. Do a simple google search and you will find as much. The hair on our bodies (and scalp) grow at different rates and the length of the anagen state will vary based on genetics, diet, age etc. Some peoples hair grows faster and for longer than others but people will have a terminal length which is the maximum at which their hair can grow. Most humans develop the longest thickest hair on their scalps and (mostly observed in males) faces. This hair will usually grow to several feet before terminating, but many humans develop much longer hair. People differ but that doesn't stop the underlying fact of the matter to be true... hair grows in a cycle. You can disbelieve it all you want but you're just denying facts at that point
@bluefox5331
@bluefox5331 2 года назад
Yes, there is a personal limit of how long your hair can get. There are also mutations that can make the growing cycle muuuch longer, see people with hair all the way down to the ground!. But I didn't trim my hair for a long time, probably two years, and it was already long before and is staying the same lenght for some time now. You're not gonna become rapunzel if you just stop trimming your hair, unless you're one of the people with the reaaally long growing period for hair. Sadly. I'd still want my hair to go longer. Might read up on how to make it grow a bit faster which would make it possible to have it grow longer.
@ansh07777
@ansh07777 Год назад
Bro I'm 17 and shedding 50-80 hairs a day am i in exogen phase ?
@lareicemonaie
@lareicemonaie 4 года назад
So explain to me how people grow their hair to there feet
@AdamExplains
@AdamExplains 4 года назад
Because these are average time lengths of the cycle. This can vary from person to person - who may have a different terminal Length. This isn't to be debated. Its scientific fact. A simple google search will clear this up
@classica1fungus
@classica1fungus 2 года назад
@@AdamExplains this subject seems poorly studied. My money is on there is something else going on. And i am basing this guess off of pure intuition. So I'm probably wrong. Or maybe I'm right? Who cares
@AdamExplains
@AdamExplains 2 года назад
@@classica1fungus I think that the science is to a point where we understand enough that hairs shed and regrow in a cycle. Why else would womens (or mans) leg hair regrow after waxing or epilating (which pulls the hair out at the root)? Maybe there are other factors that are yet to be discovered that contribute to how long hair spends in the Anagen phase but that's very different from assuming that the hair cycle doesn't exist which seems to be the implication from the original commenter. A simple google search will confirm what I am saying based on the existing research and understanding of biology - if someone wants to argue the hair cycle doesn't exist then they ought to provide evidence that demonstrates that beyond intuition.
@classica1fungus
@classica1fungus 2 года назад
@@AdamExplains i agree
@AlohaPanda
@AlohaPanda 4 года назад
Yes, we had to learn this in beauty school lol, there are a lot of science stuff in the book.
@vishalvloglife699
@vishalvloglife699 4 года назад
Hello
@killian3643
@killian3643 3 года назад
Hi Adam Explains, i was searching information on hair and i found your video. You have done a excellent work ! But i would like to know if you have a book to advised to me to learn more on the science of hair ?
@bananaqigong
@bananaqigong 3 года назад
For the viewers commenting about the fast pace.. Challenge accepted. Just for those comments, I played it at 1.5x.
@fayazahmad9016
@fayazahmad9016 6 месяцев назад
very understanding Video❤🎉
@nuaso7143
@nuaso7143 3 года назад
Still watching !
@candidtalkswithlauvena1835
@candidtalkswithlauvena1835 2 года назад
👏👏👏👏💞Thanks for explaining
@eduu2
@eduu2 5 лет назад
Slow down man , come on
@AdamExplains
@AdamExplains 4 года назад
Apologies if I am talking too quickly. You can change your settings on RU-vid to play it slower. This may help in this instance... I will try be slower on my next video (whenever I get around to doing that)
@ChodeMaster
@ChodeMaster Год назад
Adam hates 𝑛i𝗴𝗴Ҽⲅ𐒖
@benchabanehocine7809
@benchabanehocine7809 3 года назад
Hi. Do u mean that during thé anagen phase hair doesn't detach and won't fall until the five years? Thanks
@AdamExplains
@AdamExplains 3 года назад
As far as I understand (its been a while since I made this video), not necessarily, its just an estimated time and each hair will run on its own cycle. A telogen effluvium can occur as outlined in the video however this is rare. The hair could also break giving the appearance of it falling whilst the root still being attached Also for men with male pattern baldness the Anagen cycle gets progressively shorter as the condition worsens so again affecting the time delay But again the time is based on estimates I could find online and will likely vary from person to person on a range of factors
@worldaround6520
@worldaround6520 2 года назад
Thanks a lot sir.
@linkysvlog808
@linkysvlog808 3 года назад
1:44 happy
@leasebergfladstad167
@leasebergfladstad167 2 года назад
Can sugar cause hairloss, others and even doctor I have talked to say sugar doesn't?
@dimoniquesmith8170
@dimoniquesmith8170 Год назад
Do the hair grow slow or fast in the Anagen stage ?
@davidgarcia6895
@davidgarcia6895 2 года назад
I’m 17 and lose 250 hairs a day 😞
@Coregame3
@Coregame3 2 года назад
fin min
@prometheus6853
@prometheus6853 2 года назад
How’s your hair now?
@prometheus6853
@prometheus6853 2 года назад
@@Coregame3 no shedding and thinning is different man. Shedding is temporary and means another hair is growing and thinning means each hair cycles comes thinner and thinner unless there is no more hair left
@user-sq3ls6sj7i
@user-sq3ls6sj7i Год назад
How come that hair of scalp continues growing long if anagen is 6 years???
@AdamExplains
@AdamExplains Год назад
These are averages for some people the cycles could be shorter or longer. Moreover hair cycles are not synchronised for each follicle so some hairs will grow and shed independently of each other. Look up "terminal length" of hair. It varies from person to person but there will be a maximum length that your hair will typically grow
@elizabethwoldeselassie7005
@elizabethwoldeselassie7005 4 года назад
Do you have a list of sources you could post?
@shanewalkingdead8258
@shanewalkingdead8258 2 года назад
So why does the hair on my heard not fall put instead it grows longer
@AdamExplains
@AdamExplains 2 года назад
All hair is shed and replaced. Scalp hair can have a life cycle of over 7 years if I recall correctly. Nobody has the same hair they were born with
@dreadlocksempressv2861
@dreadlocksempressv2861 2 года назад
@@AdamExplains great video Sir I'm a Certified Braider and Weaver that specializes in the care and maintenance of dreadlocks (Loctician) I'm obsessed with hair in its natural form and I have a wide knowledge about haircare
@ansh07777
@ansh07777 Год назад
Is exogen phase possible at age of 17 ?
@AdamExplains
@AdamExplains Год назад
Of course. Exogen can even happen in babies. Its called a telogen effluvium (sometimes exogen is grouped in with Telogen phase)
@ansh07777
@ansh07777 Год назад
@@AdamExplains ohh thanks bro
@performkurd8862
@performkurd8862 2 года назад
Thanks but you were too fast.
@AdamExplains
@AdamExplains 2 года назад
Hey. Thanks for the feedback. FYI You can change the speed of the video if you are stuggling to keep up 👍
@beerkhan3226
@beerkhan3226 3 года назад
How I can straight my hair naturally straight without straightening cream. Have you any idea that I can change my hair geans. My hair is a little bit curly
@beautifulsoul369
@beautifulsoul369 3 года назад
That was too fast to take in. Take your time 🙄
@AdamExplains
@AdamExplains 3 года назад
You can adjust the speed setting
@Mariatyra
@Mariatyra 4 года назад
TOOOOOO FAST. need more details
@AdamExplains
@AdamExplains 4 года назад
Apologies if I am talking too quickly. You can change your settings on RU-vid to play it slower. This may help in this instance... I will try be slower on my next video (whenever I get around to doing that)
@MrJamiez
@MrJamiez 3 года назад
@@AdamExplains you're talking fine dude. I guess, because English is my native language. 😂
@natural2eternitybyanitadan845
@natural2eternitybyanitadan845 4 года назад
Too fast... Ooo
@AdamExplains
@AdamExplains 4 года назад
You know you can reduce the speed the video plays back at right?
@ayeshatasnim9363
@ayeshatasnim9363 4 года назад
U r talking too fast to understand!
@beverlyhoward3512
@beverlyhoward3512 2 года назад
Please.dont talk so fast
@Adam-Alfa
@Adam-Alfa 2 года назад
Are you in hurry?
@AdamExplains
@AdamExplains 2 года назад
Yes very much so. If you aren't you can listen to it at 0.5 speed.
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