What Blue Light Actually Does To Your Body (and what you can do about it)

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I’ve been reading your comments and everyone wants to know if the blue light exposure they get from their digital devices is putting them at risk for eye damage. I get it. We’re all working from home on our computers during the day and checking our phones constantly. That surely must be doing something to our vision, right? Let’s break down the truth behind all-things blue light, such as digital eye strain, the 20/20/20 rule, and macular degeneration.
I LOVE reading your comments and take your suggestions seriously. If there’s a subject you want me to discuss or something you’d like for me to react to, leave a comment down below. Many of my videos have been born out of suggestions directly from you, so don’t hold back!
-Doctor Mike Varshavski
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** The information in this video is not intended nor implied to be a substitute for professional medical advice, diagnosis or treatment. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace a consultation with your own doctor/health professional **

  • Ahhhh, so that's why when I am looking at my phone screen for 5 hrs straight at night, my right eye's middle part can't see(?) You know when u look at the sun and then close ur eyes and they is a greyish thing? And when I fall asleep and wake up! It's fine! And this also explains why my teacher said to never look at a setting sun for more than two minutes! Didn't know the sun rays had blue light! Thank u for teaching me Doctor Mike! Btw, when I stare at something for too long, my eyes turn cross eyed. I used to have it so often when I was young that I had to wear glasses. Now, I wear glasses becuz of my weak eyesight for staring at the phone too much everyday lol😂😅

    Sameera KhanSameera Khan20 tuntia sitten
  • the intro was so cringe my spinal cord curled into a helix

    mike61499mike61499Päivä sitten
  • QUESTION Hey Dr. Ive heard that we shouldn't use any kind of tool for cleaning our ears such as cotton buds, spiral ear-pick spoon, swab ear wax remover. Why is it unsafe. Please, please explain further. I've been using those things.

    janifah badiojanifah badio3 päivää sitten
  • What if I always do the opposite? All my devices are in night shift all day while my room is dark 24/7. Would that explain why I can see really well at night and see different shades(?) of black and why my eyes now get like disturbed by light? Btw, I do that because I’ve never liked light or the sun or heat...and my city is so bright and so hot, so for the last 4 years I’ve been keeping my room dark (a little bit of sun rays still get inside) and cold, I still had go out but with the current quarantine I’ve been in my room for half a year.

    Denisse RosasDenisse Rosas3 päivää sitten
  • when he switches to the red light while i have "night light" on my laptop at full strength OwO

    MalcolmMalcolm4 päivää sitten
  • This is how many times he said MIKE! :⬇️

    datwjanandonly XDdatwjanandonly XD4 päivää sitten
  • Not sure what your point was comparing LEDs to incandescent bulbs... LEDs come in warm colours too so not really a trade off between your health and the environment.

    Parkin FurkmazParkin Furkmaz5 päivää sitten
  • If I'm completely honest I don't think blue light is the only thing that is concerning about using electronics at night before bed. for me I always have my blue light off but I still have a hard time putting my phone down at night, but I think that the blue light isn't what's causing me to stay awake, it's the use of my brain. Watching FIstream and tik tok and scrolling through Facebook or any social media, all of that is requiring me to have a lot of thought which in turn keeps me awake. My mom likes to read before she goes to sleep but she only reads books that she's read before to go to sleep, the reason being is if she picks up a new book that she's interested in and is invested in it's going to keep her awake because she doesn't know what happens next and the suspense can keep her awake.

    Cheri BerryCheri Berry5 päivää sitten
  • **turns on blue light filter on my phone**

    Madison CMadison C5 päivää sitten
    • Madison C iPhones don’t have that 😬

      Gabe ManGabe Man4 päivää sitten
  • Legend says his friend is still asking him if he's ok.

    ✨Cat✨✨Cat✨5 päivää sitten
  • what about infrared red light therapy?

    Cherry DingCherry Ding7 päivää sitten
  • Watching this at 2:10 am

    Keziah revillaKeziah revilla7 päivää sitten
  • That intro had more action than the whole new Mulan movie

    Nicholas GrahamNicholas Graham7 päivää sitten
  • 2:25 he says that as I’m watching at midnight

    Nicholas GrahamNicholas Graham7 päivää sitten
  • Why do I get tired by sunlight? I'm more active at night. This has been going on for years.

    JmrJmr7 päivää sitten
  • These videos are getting better and better.

    RJRJ7 päivää sitten
  • Me teacher makes us do 20-20-20 and has us look away from out screen whenever possible.

    Sama DadashSama Dadash7 päivää sitten
  • Oops...I’ve just discovered your channel and have been binging on it today...for approximately 2 hours now

    Tejaswini NatarajanTejaswini Natarajan8 päivää sitten
  • Wow Mike! You have some good acting skills!

    Ultron DMUltron DM8 päivää sitten
  • I get up at 13:45 PM drive for an hour in the dark,get to work. My coworkers and I leave half the lights off until 5am and then turn the rest on. Then I leave work at 10 AM and am blinded by the sun

    Kayla SKayla S9 päivää sitten
    • 12:45*

      Kayla SKayla S9 päivää sitten
  • Mike you need help 😂😂

    ProserpinaTheElfProserpinaTheElf9 päivää sitten
  • When I have an LED lamp with warm light. You the best doctor Mike. You’re so adorable when you say Beewoop 😂

    ProserpinaTheElfProserpinaTheElf9 päivää sitten
  • What I learned from Doctor Mike to all his videos..is saying.. BEEYOOP!

    a y e s h a ' s c h a n n e la y e s h a ' s c h a n n e l10 päivää sitten
  • Dr. Mike, can you respond to anti-vaccine videos by FIstreamr Paul Thomas MD. He’s a pediatrician who I tuned into to learn more about common childhood ailments and was greatly disappointed by his approach to vaccines. He’s “vaccine friendly” meaning friendly to delaying or skipping, and has written a book about his vaccine views. You’ve made some amazing vaccine videos and everyone should be primed to receive the COVID-19 vaccine next year. He’s said kids in schools shouldn’t have to wear masks and that masks don’t do much anyway. It’s doctors like him who worry me.

    Victoria JenkinsVictoria Jenkins10 päivää sitten
  • Dr Mike - speaking of cell phones, is it a bad idea to sleep with your phone near you body or head? Such as effecting memory or sleeping problems or other health issues from radiation. I ask because I’ve just noticed if anyone (myself included) has cell phones under their pillows or near their face while falling asleep we sleep worse than if it’s away. I’m taking into account that blue light and FOMO are causes but can cell phone projected radiation cause this as well? I like to educate myself of bettering my interaction with electronics and focus (and overall health in learning to NOT be on my phone for everything, as well as TVs and such) and I’d appreciate your thoughts on it. Stay happy and healthy!

    MoonBlossomQueenMoonBlossomQueen10 päivää sitten
  • Aaand if you stay up late but use a yellow light filter on your phone?

    matt carnesmatt carnes10 päivää sitten
  • H e h

    h e hh e h10 päivää sitten
  • Just bought a pair of sunglasses. Being a grad student I'm sure this will help when I'm studying late at night. Thanks Dr. Mike

    Nicholas McNeillNicholas McNeill10 päivää sitten
  • The view from that window must be spectacular

    MonikaMonika10 päivää sitten
  • "No screens 2 hours before bed" Me: *sweats in online classes and hw"

    Charles RinghamCharles Ringham11 päivää sitten
  • Well tell all if this to my remotr school teachers

    Harmony - -Harmony - -11 päivää sitten
  • So informative and relevant. Kids should really listen 😉

    Xes ZkiXes Zki12 päivää sitten
  • Good thing, I got my blue light filter on.

    V SatyaV Satya12 päivää sitten
  • Ha. I wish I was able to wake up to sunshine. Seriously, work schedules screw things up:(

    Katie jjKatie jj12 päivää sitten
  • Too many blue light blocking glasses companies are making money off consumer ignorance. Finally someone got it right. Like always, I appreciate the objective truth Dr. Mike

    Timothy TranTimothy Tran12 päivää sitten
  • Me realizing my night light is blue: 👁👄👁

    Moazzam MozumderMoazzam Mozumder12 päivää sitten
  • Light pollution is such an easy type of pollution to fix. Using lights of 3000K temperature or lower and those of more modest brightnesses and all of it pointed where only it's needed. Not only you make it safer at night by not glaring a lot and improving the quality of sleep and also preventing the death of billions of migrating birds that die by exhaustion due to being driven off path and into windows. And the lovely night sky is within the reach of city dwellers from the comfort of home.

    Pupper Emeritus The GamerPupper Emeritus The Gamer13 päivää sitten
  • 1) Love your channel! 2)Do we really need to take vitamin supplements on the regular? If yes, which ones?

    akansha sehgalakansha sehgal13 päivää sitten
  • Me watching this on my iPad without anything blocking it....

    Rainbow CatRainbow Cat14 päivää sitten
  • he didn't mention blue light filter in phones do they actually work ?

    Stale silverStale silver14 päivää sitten
  • Reminds me my Bio classes in school and college days...Back to school !! An interesting training method...

    Neetii Bisht AartzNeetii Bisht Aartz14 päivää sitten
  • Can I use blue led light bulb

    mohit vermamohit verma15 päivää sitten
  • you handwriting made me skip the aura stage

    Yash SharmaYash Sharma16 päivää sitten
  • I gotta admit, that intro raised an eyebrow..... hahaha. Like, why is there a dude coming out of your bedroom area--at night--in what looks like his jammies? And why do you look so disappointed? But then came the big reveal and all was right in the Dr. Mike FIstream verse again....I kid but only cuz you're such a good sport!

    Amanda KennedyAmanda Kennedy16 päivää sitten
  • Me watching this my iPad before bed Yeah 👍 perfect

    Crazy wyvernCrazy wyvern16 päivää sitten
  • Also most phones have these yellow filters on phones you can use when your about to fall asleep.

    Rusty ValdezRusty Valdez16 päivää sitten
  • LEDs can be made in any color without a filter. Many also have the ability to change color with the push of a button.

    Jon Grossman-ZohaJon Grossman-Zoha16 päivää sitten
  • Very interesting vid

    Aaron AustrieAaron Austrie16 päivää sitten
  • I swear this was a movie 😂🤦🏽‍♂️

    Aaron AustrieAaron Austrie16 päivää sitten
  • Lol the intro looked like something out of a movie scene dawg 🤣🤣🤣

    Aaron AustrieAaron Austrie16 päivää sitten
  • High school(s) that use Digital: NAHHH WHO CARES! Me: So I can't help my eyes?

    Christopher KnowlesChristopher Knowles17 päivää sitten
  • For poeple with blue light glasses, do they actually work but are they just marketing? Secondly, does the blue light filter wear out over time? Eg. Wiping it with an alcohol

    Yt DaylightYt Daylight17 päivää sitten
  • Me: immediately change to eye comfort mode after watching this

    Abdur Rahman basil xi-bAbdur Rahman basil xi-b17 päivää sitten
  • Dr mike made me understand the eye more than my teacher for 2 years. The acting was soo good by the way

    Cielo sucks At singingCielo sucks At singing17 päivää sitten
  • question: been sleeping every night with a virtual reality headset on for the past year... personally i find i fall asleep faster with it on. the head strap is on loosely and the display is dimmed usually an hour or two before i try to sleep. the display also turns off after 30 minutes... many people have been telling me that wearing a screen strapped to my face while i sleep is extremely unhealthy. just curious on what a doctor thinks about it, should i stop? (p.s i have no issues with eye strain, dry eyes or head aches and i'm 25)

    Icebound GlaceonIcebound Glaceon17 päivää sitten
  • And 'Turigiums'.....is that how you spell it?....nope.....Pterigiums.....

    Karla TaylorKarla Taylor17 päivää sitten
  • I ❤ blue....my living room curtains are blue🐳🍬☁️⭕

    Karla TaylorKarla Taylor17 päivää sitten
  • it makes it so hard since I'm up every night at 2 am working on my computer for school

    Kirb StompKirb Stomp17 päivää sitten
  • Isn't that why the sky is blue? because blue light has the longest wave lengths?

    Adriana KingAdriana King17 päivää sitten
  • 2:18 Me watching at 11 pm: interesting

    SttuddySttuddy17 päivää sitten
  • I like to read in bed before I go to sleep. Witch one is better than an e-book reader or a traditional 📙 with a lamp?

    RiditaRidita17 päivää sitten
  • My prescription glasses have blue light protection and uv light so Im good

    Nicole SihlerNicole Sihler17 päivää sitten
  • 💛

    Don't Worry be HappyDon't Worry be Happy17 päivää sitten
  • Counselling psychologist here! Have been discussing this a lot in sessions with clients (especially students). Now I can just send them this video and use therapy time better 😁😁 Thanks Doc! p.s - would love to see you do a collab with mental health experts 🤩

    15chiyu15chiyu18 päivää sitten
  • Can you have less rods in one eye than in the other? I noticed that I see well at night with my left eye, but with my right eye, everything's a good few shades darker xD

    Striving for new horizonsStriving for new horizons18 päivää sitten
  • But looking or playing mobile phone IS my way of falling asleep.

    Reginald LiaoReginald Liao18 päivää sitten
  • Me watching this at 1 am 👁 👄 👁

    Brooke ReadoutBrooke Readout18 päivää sitten
  • Best and amazing FIstreamr ever who is smart strong a 10 no matter what be you always ignore haters love you so much 😇😇😇😇

    Preslee CarsonPreslee Carson18 päivää sitten
  • Can you watch this video? Experts claim that blue light will not affect your retina at all and the sky has 30 times blue light than your smartphones. fistream.info/work/videot/hMyCkprHm33cp3U

    Edison SilvaEdison Silva18 päivää sitten
  • Every one: BUY BLUE LIGHT GLASSES Me: just turn it on night mode stuped 🤣

    ItsPsychoGamesItsPsychoGames18 päivää sitten
  • I know that this is a news who's covering this topic but I need you to clear some things up in this video. fistream.info/work/videot/hMyCkprHm33cp3U Or you can search up Why you don't need blue light lenses CBC

    SacredDesireSacredDesire18 päivää sitten
  • im so glad I watched this thanks for the advice.

    Nova centurionNova centurion19 päivää sitten
  • I just bought one without any research and feel relieved that dr mike says it works

    SkaiSkai20 päivää sitten
  • I asked my kids ophthalmologist if it was necessary for them to wear blue light glasses since they're on their ipads for many hours due to remote learning and he said it's not necessary. Now I'm confused, should they wear them or not? 🤔

    3 WacKy WaRRiorS3 WacKy WaRRiorS21 päivä sitten
  • Yeah we know as a gaming community its best to have a warm light so you dont stay up all night, you can actually work the next day and sleep thru out the night

    PrincePalmPrincePalm21 päivä sitten
  • The intro I didn't think I needed

    AshleyAshley21 päivä sitten
  • Is it bad if iam easily sleepy by looking to my phone? And is it bad if i dont see sunlight for few days due to being at home all the time of this pandemi?

    King FighterKing Fighter22 päivää sitten
  • Me watching at 1:00 a.m.

    DarkSwede21DarkSwede2122 päivää sitten
  • So do they work or not

    Isabella LittlewhiteIsabella Littlewhite22 päivää sitten
  • You forgot to mention that many devices have a 'night light' feature where you reduce the amount of blue light and turn it more into the red light zone. (Chronic sleep issues - had to learn this to get my sleep patterns optimal to help counter other sleep issues created from Fibromyalgia)

    Fear Nothing, Laugh OftenFear Nothing, Laugh Often22 päivää sitten
  • I have new RGB light bulbs that have blue, which in my opinion looks really cool, but should I be worried about all the blue light?

    Whittling with WillWhittling with Will23 päivää sitten
  • Thanks.....got idea....great job Dr Mike....

    AVANI SHETHAVANI SHETH23 päivää sitten
  • i use blue light glasses because my head hurts when i use too much time to my phone.

    leah's vlogleah's vlog23 päivää sitten
  • daYoom the drama

    hu mahu ma23 päivää sitten
  • I am seeing this at 1 am 😬😬😬

    Shreya ThapaShreya Thapa23 päivää sitten
  • I accidentally looked at the sun/moon eclipse once when I was younger, now I lost a very small part of Central vision in my left eye, not that big deal, It's very annoying only If I try to read small font with closed right eye, and the damaged part of my vision is not black, it's like I messed up with a Photoshop tool in a particular point, if staring a grid in the distance with only that eye I will see the iron bars kind of distorted, the eye doctor said there's nothing to do about that

    Alessio MAlessio M23 päivää sitten
  • Why are you promoting a weight loss program like Noom? You must know there is no medical evidence that weight loss is helpful for curing diseases. I'm really disappointed that someone who says they say the "Truth" is promoting a lie. Please don't sell out to a fat-phobic and body shaming culture. Super depressing, man.

    Gabriel ZwyghuizenGabriel Zwyghuizen23 päivää sitten
  • The end: this just proves Dr.Mike is a robot

    Bippo LhdtBippo Lhdt24 päivää sitten
  • Ok now I’m officially confused. Its very well known in the gaming community to have a blue light filter in order to reduce eye strain. I know it works for me so is it just placebo?

    SpetsnazTTVSpetsnazTTV24 päivää sitten
  • I really can't move on with that intro 🤣

    Darlene JaneDarlene Jane24 päivää sitten
  • i wonder if all those poor old k-mart workers who handled the blue light special had any problems with this? lol. who here is old enough to remember kmart blue light specials?

    Midlife Maniacal MayhemMidlife Maniacal Mayhem24 päivää sitten
  • Do a video about narcolepsy which is what I have

    Shawn KillhamShawn Killham24 päivää sitten
  • 1:26 I’m going to zoom in BAMM zoom in mode

    Alicia RuizAlicia Ruiz24 päivää sitten
  • Dr mike: don’t use technology 2 hours before sleep There I am watching this right in bed with the light off

    Alicia RuizAlicia Ruiz24 päivää sitten
  • I work in front of a computer all day. It was recommended that I get glasses with the blue light filter when I had my eyes chkd. So I did, one unexpected side effect.....90% of my migraines WENT AWAY. Never even considered the computer as a trigger. So I love them.

    Stacy MStacy M24 päivää sitten
  • 6:08 finally I heard dr Mike say my city

    flux シflux シ24 päivää sitten
  • is it weird to remember being made?

    Melissa WurtzMelissa Wurtz25 päivää sitten
  • Hi, I've been following your videos for some time. Speaking about light,I would like to know if you could make a video talking about visual health for call center workers and drawing artists? I work 9 hours at a computer and then practice hyperrealistic drawing.

    Tatiana x0Tatiana x025 päivää sitten
  • I literally have blue ceiling lights and I got so scared when I saw this

    Jungkooks donut from the Dynamite MVJungkooks donut from the Dynamite MV25 päivää sitten
  • I read that blue filter on glasses is useless. Is that true? Some say you should go for it, some same not to.

    Andria A.Andria A.25 päivää sitten