How UV Rays Damage Skin

[@DocUnlock]

Did you learn something new or want to ask me a question? Leave a comment!

[@drmanishratnakar]

Hi. Would like to know more about melasma and its management. Please make a detailed video on the same topic.

[@baljeetd]

Your pale yellow/green pallor means you are deficient in vitamin D, and hence... sun exposure ;)

[@viet_lindsay8095]

yes i did

[@orion5795]

I have melanin so haha

[@stephenupdate1480]

What if your black

[@henryjoelmakaveli]

Skin of non MELANETED people, pleaaaase make sure you give that precision.

[@x6655]

Facts

[@onehiraeth5890]

Wrong, sun damage and skin cancer concerns all skin colours, dont think that black people are immune

[@platinumgold1119]

⁠@@onehiraeth5890 Black people aren’t the only ones with dark skin

[@glodusmuspell9069]

How come african people live in the sunlight without no clothes days and days and they feel just fine?

[@blackzilian83]

Because we are already protected naturally by our black skin (melanin ) do you research 😉 . We are made by the sun for the sun 💪

[@TwanHill05]

@@blackzilian83 exactly, are melanin/carbon helps us absorb rays from the sun ☀️ which is why we don’t need sunscreen

[@dknight211]

Instead of using sunscreen, the best option is to use a physical barrier (such as a sun hat and light clothes with a good UPF rating)

[@mikemierspadios7036]

I agree it offers more protection. Since even using sunscreen they still fade and some UV penetrate skin. The problem with this is not all the time you can apply it practically. Unless you're a Muslim who covers up everyday.

[@supimcris]

Agreed, or if you have taken enough sunlight, and your body tells you that's enough, you should move on from there. Instead of using sunscreen which can lead to more damage in your skin or even in your whole system.

[@MyHealthytude]

skin care is concerned with 3 catagories of light rays , ultra violet , uv visible and infared rays.

[@jaymo2638]

it doesn’t damage melanin! talking about it does it less to where you can’t notice, it’s not damaging then! the sun makes me feel amazing everytime i sunbath/gaze. I never get sick and exercise pretty often great health

[@habaneroflame]

Black people have carbon , White people have melanin they lied

[@radiation4brunch]

@@habaneroflame 😅😅 Facts Bruh. But we got neuro-melanin or something like that. But we got carbon & stardust, which carbon is created in stars thru fusion, so we are it. If we got burnt & died in the sun, then wtf would be life 😅 We are the organic beings of the solar system.

[@henryjoelmakaveli]

Same here.

[@ichankomo8767]

I am different. Im like that....err that terminator genesis black carbon undead guy. My skin cells neva dies & there is not enough bullets in the world to kill me.

[@caitlynsworldasthesongstrist]

Indeed!

[@drmanishratnakar]

Hey doc, new subscriber here! Nice information. Short n sweet, to the point. Good work doc. Keep it up. 👍👍👍

[@thedude3189]

He completely forgot about the #1 cause of skin cancer witch is SUNSCREEN LOTION....all the chemicals of the lotion gets fully absorbed in your skin.

[@supimcris]

Hell yea, that's what I was looking for, sunscreen is not essential I've been saying this for 6 months straight since I started taking the beautiful rays of the sun with no sunscreen. My vitamin D levels are higher than my family's levels, don't use sunscreen, take sunlight, don't burnt and you will be fine.

[@sofeafraziali4783]

This taught me a lot! Short yet nurturing video. Thank you!

[@thedude3189]

He forgot about the main cause of skin cancer witch is sun screen.

[@supimcris]

THIS 👏🏻

[@omaradel6931]

You deserve more subs , helpful video , please post more about this topic

[@DocUnlock]

I really appreciate your support and encouragement Omar! I'm glad you found the video helpful. If you're looking for more videos like this, I'd suggest checking out my 'Skin Cancer and Sunscreens' playlist: kzbin.info/aero/PLbpdLnkJXXckn9e-iA8dHSRvqhTrnLA-g If you have a specific question, please let me know and I can add it to my list of potential future topics :)

[@albertmygind1141]

you just saved my exam you are a god

[@DocUnlock]

I'm glad the video helped you :D

[@joshgabrielarconcil9479]

Are you a highschool or colleg

[@user-vn8ro9iz5x]

Does UVA get absorbed by the epidermal cells or only dermis? In other words does it just penetrate through epidermis without it getting absorbed by the epidermis ?

[@rileyfreeman6690]

Who’s skin… not the children of the Sun

[@x6655]

Facts

[@horsesandus2347]

simple and clear explanation. Excellent!

[@DocUnlock]

Thank you!

[@xieruiyun5633]

Really like your videos,keep working

[@Sharperthanu1]

UV exposure can cause wrinkles and cataracts and UV exposure can also damage the immune system.

[@supimcris]

How that can be possible? If the sun creates vitamin D through your skin which is known to boost your immunity instead of lowing it. 💀

[@brainbeforebeauty6287]

I have learned alot, thank you so much

[@nyjiermurphy6120]

Which kind of melanin? Pheomelanin or neuromelanin? You used fair skin which has pheomelanin but used an image of dark pigment which is neuromelanin?

[@TwanHill05]

Neuromelanin

[@carlwalker9635]

Please update your information. Meaning, dark skinned people have what is called, EU-melanin, it's not neuro-melanin, as everyone has neuro-melanin. It is eu-melanin which transmutes, transmits, and acts as a semi conductor of UV A, B, and C radiation, but this fact makes pale skin people extremely jealous, and envious, so they; usually, avoid speaking about the subject, or act like people with eu-melanin are supposed to be afraid of the Sun like they are with their weak pheo-Melanin.

[@x6655]

@@carlwalker9635 facts

[@ArathiJNair]

@@carlwalker9635 You have some knowledge. So don't you think sunscreens are more harmful in the long-term???

[@RK-jo6ur]

grow beard and save yourself from uvb

[@jeiandjaeTV]

Hello, I just want to ask a VERY IMPORTANT QUESTION. What if a person enters a sealed room where a UV Lamp used for disinfection is turned on and unaware that it's a UV lamp, she stayed in the room for a few minutes. Then when she leaves the room, she didn't feel any pain in her eyes or anything on her skin. Should we still be worried? Should we bring her to the hospital?

[@supimcris]

To be honest I don't like to use tan beds, I prefer 10x times use the natural sunlight to get tanned.

[@gehtdianschasau8372]

Since i was a child, iv'e always wondered about that. Darker surfaces absorb more heat than brighter ones. According to that, peoples skin should get brighter (over hundreds of generations) the further away from the equator they live, but the opposite seems to be the case. I finally got a satisfying answer. Thx and have fun.

[@jaymo2638]

i sunbath everyday and sungaze (look right at with my eyes) and it makes me feel better everytime also gives me energy🤷🏽‍♂️ going on a year now I am perfectly fine

[@MayLingTV]

Hi doctor, can we use curtain on our window to block UV? I have a thin black curtain

[@supimcris]

We aren't vampires to block our windows from the beautifulness of the sun!

[@satanlucifer4437]

Does melanin block UVA significantly? Ie, will people, with a darker skin tone or tan age less quickly?

[@TwanHill05]

Yes especially with black people, we are genetically connected to the sun ☀️, have been since the beginning of time

[@x6655]

Facts

[@ArathiJNair]

Yes... But specifically its not the coloured people. But the ones who get their colour dim more easily. That is... White people < Black people < People who tan faster and better are healthier by blocking UV rays 💪🏼

[@twogamers429]

U are really great sir

[@ineea6670]

Hello. I have a question about the still unexplored "impact of UV and UVC radiation on the skin or the human body. I have a curious experience that, in contrast to my gene, could have caused a great deal of impact. Made in the 80s. The exposure occurred in 2006. It is possible that hot flushes in the face, still red hypersensitive eyes and redness is a consequence? I had a lamp on the table about 1m from the face for about 25 minutes. my eyesight was narrowed, I wasn't feeling warm, I was red on the next morning and my eyes hurt in the morning after the exposure, they gave me panthenol in the emergency room. I see an increase in blood supply, including eyes, I am still red, I am very red at any activity. accusations, hotness and hot flashes make you annoyed by eating, and your eyes turn red and the whole face gets blood flowing into extreme colors. Is it possible that this is due to UVC burns or is it just a coincidence and is it a hormonal or other matter? So I am a light type, so if there was DNA damage at the cellular level (as reported in available UVC resources), could it be the change? How strong must be the radiation and the exposure time to make this possible? Thank you very much for your answer.

[@DocUnlock]

Hi David, thank you for your comment. After reading what you have written, it seems that you are experiencing some troubling symptoms. However I cannot quite understand your question. You have mentioned UV-C in your post. All I can say is that UV-C from the sun does not reach the earth's surface as it is filtered by the atmosphere (please see this link from the World Health Organization: www.who.int/uv/faq/whatisuv/en/index2.html). Since this channel is for educational purposes, I cannot provide medical advice for your specific situation. I would suggest you seek a specialist opinion regarding your symptoms. The first step would be to see a General Practitioner/Family Doctor in your area. He/She may suggest referral to a specialist if required. Hope this helps.

[@indukooriyoga]

How much time is excess UV exposure? and how to treat if skin is ageing and looks old due to UVA / UVB exposure

[@tyronemurray4302]

HE'S SPEAKING TO WHITE CLONE PEOPLE NOT THE ORIGINAL SUN MAN😂😂😂.....NOT UP FOR DISCUSSION

[@badyuff]

UV rays damage everyone’s skin, including people with more melanin. As do free-radicals.

[@jamiemohan2049]

You are a fool Tyrone. You are not immune.

[@nairbdelrey1561]

fool...the destruction of collagen from UVA happens to black, brown and white equally 😒

[@ajsabundance1985]

Nairb del Rey very incorrect but Tyrone is a ignorant one

[@dollaz4647]

@@badyuff because they been eating bullshit their whole life, putting bullshit on the skin.

[@derrickswainjr3605]

We don't have this problem melanin/carbon absorbs the sun we are of this planet it cant hurt us. Can't speak for everybody lol.

[@TwanHill05]

Exactly, any human who burns under a natural source of energy don’t belong here on this planet, they aren’t natural beings and they know who they are!!!

[@x6655]

Facts

[@the_gamer_kinda]

Hard Facts lol

[@nobunaga2563]

If you are black , the melanin in your skin absorbs the uv ray better than white or asian ..

[@melo-cotton7096]

Skin cancers still exist for black people, and the danger is that it's less visible so we usually detect it when it's a serious issue...

[@Kamisuitendo]

What's considered getting a healthy amount of sun?

[@looiart]

So how much dose is the healthy dose??

[@valleryestrada2586]

I love it 🥰

[@stsnotablebiology4227]

What happens if someone doesn't apply anything on skin (face) Is it good!?or!how skin protect itself from sun *Uv rays*?

[@Krishna-zh1ri]

If you’re dark skinned, nothing will happen. Dark skin is made to be in the sun and it is adapted to that environment. The sun is the most natural thing and our skin needs it. But if you’re light skinned then you should wear a sunscreen is you’re going to be out in the sun all day.

[@HyperListicChris]

@@Krishna-zh1ri Lucky me I'm black

[@mauriciomendoza7976]

No one needs sunscreen better to wear clothing that covers your skin if you are light. Even then you want moderate exposure to sun, while wearing minimal clothing. Eat well, sleep well,exercise, and get some sunlight.

[@mikemierspadios7036]

@@Krishna-zh1ri Are Dark skinned person immune?? *Not really. But they skin have more melanin protection. But your not immune to Sun damage. You may not get sun burn cause you are already toasted. But UVA can penetrate skin make your face soggy and old alot faster. So I recommend black people still wear sunscreen when going out in sun.

[@mikemierspadios7036]

@@mauriciomendoza7976 Nope. Try stretching your clothes to the sun. You can see in the textile there are some small holes that sun can go through. These small holes can make way for UVA and UVB still better to use both CLOTHES and SUNSCREEN. best protection.

[@mariamhemaya8533]

Hi Ineed review artical of uvradiation cause cancer skin please

[@MdSaif-te3vt]

Sir which time UV rays are weak ?? Can I get tan after 4pm ? Plz reply

[@Svafne]

I'm 34 years old and Scandinavian (very pale). And people still believe I'm 20-something and have done that ever since I was 20-something '^^ I very highly suspect it's because I have always hated being warm, so even as a child I would seek out shade. And most people have sun(radiation) damage skin, so in comparison I look younger than my peers.

[@sarahalsadig9566]

Thanks

[@sash8589]

Fantastic 👌

[@olieng3392]

I have been studying about this topic for a while Thank for your vdo made me understand much better

[@DocUnlock]

I'm glad the video helped you :)

[@klapzzo9024]

this happened to me last summer

[@kittu519]

Best time to get vitamin d From sun ?for dark skin without damaging skin

[@prasanthsasidharan9609]

Your message is incorrect. UVB vs UVA

[@suzhium6602]

i have school project about uv radiation and i cant find anything about if you got exposed to uvc

[@ArathiJNair]

UVC from sun are negligible because they are less present and absorbed

[@deltatechdrcroft]

Vampires

[@rileyfreeman6690]

On God

[@ArathiJNair]

Can we use topical licorice for skin pigmentation? It is said that licorice prevents tyrosinase from forming thus reducing melanin synthesis. 😶🤷🏻‍♀️ I'm lot concerned as I'm looking forward to use the product which claims it has other items to prevent UV damage and free radical damage😶

[@supimcris]

“Use it or lose it” If you never leave the sunlight rays hit your skin, it is pretty likely that your skin wouldn't be able to protect on its own, which can lead to permanent damage.

[@ArathiJNair]

@@supimcris There is more to it...I already confirmed topical suncreens which work this way are more dangerous than you think. That is why I came here because KZbin thrives on products that say 'protect your skin damage' and I secretly want people to question themselves. Don't say anyone🤫🤫🤫

[@supimcris]

@@ArathiJNair U got me haha, I thought that you were talking serious in your last comment, honestly I recommend to you avoid any type of sunscreen, it doesn't matter if it is natural or even synthetic. Like I said before, if you never let your skin take some sun rays. Your skin sooner or later will lose its ability to protect itself, is just like people trying to make a asian squat. The asian squat is the most natural human rest position, children uses this position when they're playing with dirt or with their toys, you'll be so impressed about the fact that a lot people can't handle this position for 4 minutes straight.

[@ArathiJNair]

@@supimcris 😜😂

[@selfsinger6633]

It was nice sir

[@basediggy]

You really stumbled into a hornets nest here James...

[@moonstar21868]

I’m a naturist and devoloped an extremely sore bum crack cos I was in the sun too long

[@csposts2]

Yeah im not going out anymore

[@BadBoy-ip2vw]

but what about vit D deficiency

[@DocUnlock]

I look at Vitamin D deficiency in another video

[@fikipilot]

UV B??? You meant UV A, right?

[@tsuganthanthirumurugan6906]

Sir I am span 3minutes very near any problems sir

[@Hari-gu5mr]

Then what is the use of ozone layer??

[@DocUnlock]

The ozone layer block some, but not all, types of UV. UVC is blocked by Oxygen (O2) in the atmosphere and the Ozone layer. So no UVC reaches the ground. UVB is partially blocked by the Ozone layer but not completely. Some UVB still reaches the earth's surface. UVA is pretty much unaffected by the Ozone layer and most of it reaches the ground.

[@Hari-gu5mr]

@@DocUnlock thnks

[@jellicadiaz8640]

it protects us from UV rays

[@thabangnkopane4626]

The sun is a good example

[@RonaldSimonKahn]

This is why I don't touch grass, ever.

[@RonaldSimonKahn]

Don't even lay a foot on grass.

[@RonaldSimonKahn]

Not once.

[@RonaldSimonKahn]

And never plan on doing so.

[@RonaldSimonKahn]

Sun burn got me fucked up on a whole other level.

[@RonaldSimonKahn]

Sun scream didn't work.

[@aishabeats7538]

great sir

[@estellla]

Thanxx

[@manistr9352]

Nice sir👌

[@ethanelectric1024]

can melanin block uva?

[@TwanHill05]

Yes especially for carbonated people “Black people” we are made for the sun ☀️ which is why we don’t need any sunscreen

[@JB-tw5bc]

Yes, melanin people have nothing to worry about from the sun. Not even light skin melanated people.

[@x6655]

@@TwanHill05 facts

[@bigpipi2374]

Mr. Mendoza are you here?

[@JB-tw5bc]

What about uvc???

[@ArathiJNair]

UVC from sun are negligible because they are less present and absorbed

[@bernieclips9003]

You know what's worse? Sunscreen.

[@carnistpolice]

Facts

[@asmrbully6980]

Y

[@ArathiJNair]

But my question is... Sincerely, then, what will we do....🥵🥵🥵the temperature and sunlight here is strictly under the tag ' cannot be tolerated and harmfull for the skin '. Needs a solution 😵

[@onehiraeth5890]

Stop spreading misinformation

[@ArathiJNair]

@@onehiraeth5890 why bcos that's true??

[@cliffhopkins7101]

I hate having fair skin

[@manoharsinghbalawat3195]

Am i the only one who noticed his accent?

[@JeffreyClark-k9v]

Tyree Corners

[@liammorriss]

The sun is a deadly laser

[@airness8537]

School assignment here.

[@anonymousprinter6822]

Why aren't they're pictures of black people with such burns? Just asking for a friend. 👁️

[@TwanHill05]

Isn’t it obvious lol we are connected to the sun ☀️ have been since the beginning of time, are melanated/Carbon skin helps absorb the UV rays from the sun to protect us from any harm, it cures us from any sickness and activated our dna 🧬 we never needed any sunscreen because we are “Children of the sun ☀️ “ natural to the earth

[@asmrbully6980]

@@TwanHill05 tell me more of this

[@rallers3002]

UVA makes me want to stay indoor forever.

[@Paul-po1wo]

Always wear sunblock

[@rallers3002]

@@Paul-po1wo Isn't it weird to know that you need some weird chemicals on your skin in order to just live a normal live without damage your skin?

[@kiaras44]

Who else is here for online school?

[@ritasingh2153]

Nice voice sir

[@GAMERCASB]

Me I'm like a vampire I can't stand sun I have to be on the shade side or wait till it's 6pm to go out when the uv its at its lowest

[@firstladychosen186]

Haha sucks for you I'm glad I don't have that problem 😂 I can be out in nature all day long and have no issues👌🏼Looks like somebody don't belong here👀

[@whatthehul7906]

no

[@Yeliahsantos]

sir you forgot UVC

[@thabangnkopane4626]

Its not the pen dont use the sun

[@joshgabrielarconcil9479]

Why there is no uvc😡

[@DocUnlock]

Hi Josh, UVC gets absorbed by the earth's atmosphere and doesn't make it it down to the earth's surface. So us humans don't need to worry about the effects of UVC

[@joshuawaring4180]

Fortunately, I live in England, where the sun only comes out for three days in July.

[@ArathiJNair]

I'm coming there soon. I can't bear the ~40° here in my room🥵🥵🥵

[@henryjoelmakaveli]

I think you should say, except FOR BLACKS, we are the same, but we AIN'T the same, 😂

[@x6655]

Facts

[@514Exc]

Gods people bask in the glory of the sun without fear in fact we gain energy from it.

[@Mokorii7]

And skin cancer!

[@princessmargaret5128]

Eyebrows.

[@CP-ul3og]

Tupac an opp fr

[@AlfredMirabelle]

Martin Timothy Brown Frank Lewis Ronald

[@ScottWilliams-l5m]

Hilll Lock

[@rileyfreeman6690]

The dark side of the sun here to liberate the darker shade

[@moosakigaming7033]

I wish the sun had a wife The one who kept him in control😁

[@JuliusRachel-r7j]

777 Hilpert Mountains

[@jessica_edu]

❤❤❤❤❤

[@LadyLynn22]

☝️☝️🔎🔎💪💪

[@CP-ul3og]

Live laugh lean

[@tiny2love]

Lies !

[@carnistpolice]

He thinks humans should live in fake houses when biologically humans were meant to live outside

[@annabanana2009]

❤