Sleep (Cycle, EEG Waveforms, Pathology)

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My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
For educational purposes only; NOT medical or other advice.
Some videos contain mild profanity and hyperbole solely used to assist with memorization. Viewer discretion advised.
Opinions are entirely my own.

Пікірлер: 138

  • @docnotpop
    @docnotpop3 жыл бұрын

    I would also point out that nightmares happen during REM sleep. I've come across this before on questions.

  • @georgenaratadam3803

    @georgenaratadam3803

    3 жыл бұрын

    Same I got that question wrong. Mixed it up with night terrors.

  • @fereshtahkhoshbakht1999

    @fereshtahkhoshbakht1999

    3 жыл бұрын

    I also did wrong this question in uworld 🙁

  • @Ifeany1

    @Ifeany1

    3 жыл бұрын

    @@georgenaratadam3803 whats the difference between nightmares and night terrors and where does night terrors appear?

  • @jesusfranco2099

    @jesusfranco2099

    3 жыл бұрын

    @@Ifeany1 You can remember nightmares (happen in REM sleep). You cant usually remember night terrors and they happen during N3 (sleep walking happens during this stage as well.

  • @43prithiramesh15

    @43prithiramesh15

    3 жыл бұрын

    Thank you for your comment

  • @SS-xu4lt
    @SS-xu4lt3 жыл бұрын

    to remember K complex and Sleep Spindle is N2 [it takes '2' to "KiSS"] (also note that kissing involves mouth and hence teeth=Teeth grinding) to remember N3 symptoms ['N3' you let out your 'pee'] (bed wetting) [Now since you memorized bedwetting from 'pee' = 'Terror' you are a 'bedwettor'](night terror) ['N3' go walk you are free] (sleep walking) To remember Delta wave in N3 [with a group of 3 you can give them the "D" (sexual reference)

  • @candyflossz099

    @candyflossz099

    Жыл бұрын

    best comment award thanks for the tips! (And thanks for the humour

  • @xx7Piano7xx
    @xx7Piano7xx Жыл бұрын

    Mnemonic I use for the EEG waveforms is BATS Drink Blood, hope that helps someone haha. Love this channel SOOOOO MUCH!!

  • @valarmorghulis364
    @valarmorghulis3643 жыл бұрын

    Always..always my favorite medical school channel!!

  • @zurabkhutsishvili846
    @zurabkhutsishvili846 Жыл бұрын

    HI DIRTY MED. I WANT TO SAY , THANK YOU ! I GOT MY STEP SCORE 275 , REASON IS YOUR VIDEOS !! ABSOLUTELY HIGH-YIELD !

  • @javiermartinez2852
    @javiermartinez28523 жыл бұрын

    So pumped for this video!!! Love your work man, thank you for everything that you do!

  • @kyleseljaas8584
    @kyleseljaas85843 жыл бұрын

    Got a UWORLD question where you had to connect muscle paralysis to REM sleep and REM sleep to the stage where nightmares occur. Nightmares are different than sleep terrors which occur in stage 3.

  • @burje5408

    @burje5408

    3 жыл бұрын

    And in nightmare the brain 🧠 uses a lot O2.

  • @josephhirmiz468

    @josephhirmiz468

    3 жыл бұрын

    I had that exact question last night lol

  • @krutikpatel1330

    @krutikpatel1330

    2 жыл бұрын

    came here for same reason

  • @DeepakKumar-ub9zx

    @DeepakKumar-ub9zx

    Жыл бұрын

    nightmares can be remembered whereas nightterrors cannot be remembered also nightmares are seen in REM sleep . there is Locus ceruleus mediated paralysis in REM sleep

  • @VyvienneEaux
    @VyvienneEaux3 жыл бұрын

    Just when I needed this video! This was the last thing I needed to study before my test.

  • @kanizislam9718
    @kanizislam97183 жыл бұрын

    Thank you so much for the sleep cycle video. I just had UWORLD question on narcolepsy and you have clear the topic for me.

  • @aprilgreen3693
    @aprilgreen36933 жыл бұрын

    Love your work man, thank you for everything

  • @anaos1004
    @anaos10043 жыл бұрын

    Everyone should see your videos! If you could, I'd love to see more videos on nephrology and infectious diseases for step 1 💕

  • @TheFixerfly
    @TheFixerfly3 жыл бұрын

    Clear and comprehensive, love it!

  • @Salam_1965
    @Salam_196511 ай бұрын

    This is an outstanding presentation. Just a minor correction OSAS occurs more in REM sleep due to muscle atonia which affect the throat and breathing muscles Except the diaphragm. After each Apnic event there is a brain arousal then going back to sleep via N1. So sleep apnea increases N1. Thank you for your efforts and teaching

  • @rexs3026
    @rexs30263 жыл бұрын

    Thank you for sharing your knowledge in medicine for free which is very difficult to find. Appreciate your hard work !! God bless

  • @hatemauda
    @hatemauda2 жыл бұрын

    Obstructive sleep apnea increases in REM due to atonia and increase oxygen demand.

  • @nurlandav6356

    @nurlandav6356

    2 жыл бұрын

    i,m also confused with this. In UW OSA increases in REM< but here is in N1.

  • @Salam_1965

    @Salam_1965

    11 ай бұрын

    OSAS increases in REM sleep due to muscle Atonia which affect throat muscles and breathing muscles Except diaphragm. When Apnic event occurs it’s usually followed by brain arousal and then going back to sleep via N1. So Sleep apnea causes increase in N1. I hope this clarify the point.

  • @l2ebel96
    @l2ebel963 жыл бұрын

    I'm reviewing high quality videos like this to get that 280+ tomorrow. Thanks for the help!

  • @thegamingboy-th3cw
    @thegamingboy-th3cw3 жыл бұрын

    Thank you so much for such a nice conceptual demo

  • @nouryahalhafez6784
    @nouryahalhafez67843 жыл бұрын

    Thank you for your hard work Thank you so much 🙏🏻💖

  • @Melynda-uf5cg
    @Melynda-uf5cg2 жыл бұрын

    You did a great job explaining. I really enjoyed it!

  • @Krishna-ub6ij
    @Krishna-ub6ij3 жыл бұрын

    It was very informative and easy to remember! Thank you for your efforts!😊

  • @candyflossz099
    @candyflossz099 Жыл бұрын

    This is such an amazing video, including in-depth knowledge and tricks to memorise better!! Thank you

  • @nafisak8441
    @nafisak84412 жыл бұрын

    This channel has been extremely helpful for my exam that I'm preparing for ... Thankyou so much!

  • @dr.orderz557
    @dr.orderz5572 жыл бұрын

    Best explanation ever !!!! Thank you 🙏🏽

  • @sumitvishnoi3142
    @sumitvishnoi31423 жыл бұрын

    Very informative thanks for premiering

  • @deborasepulvida
    @deborasepulvida3 жыл бұрын

    best yt channel to study for step1

  • @fariyaashrafkazi6185
    @fariyaashrafkazi6185 Жыл бұрын

    Feeling blessed!!😊

  • @Itried20takennames
    @Itried20takennames3 жыл бұрын

    Another mneumonic: BATS DrinK Blood, or Beta, alpha, theta, spindles, then delta/Ks in N2 (also second word) then back to Beta for B in blood. Google for a better description.

  • @kinlam1476

    @kinlam1476

    3 жыл бұрын

    Delta waves are part of N3. Otherwise, good mnemonic

  • @jeweltanhs2873
    @jeweltanhs28733 жыл бұрын

    THIS IS SO GOOD

  • @RainbowWorrior121
    @RainbowWorrior1219 ай бұрын

    Namaste & thank you for such an insightful video. I’m curious regarding each waves in each phase in that. Is each wave completely consistent from the beginning to end in each of the phases N1, N2, N3 & REM in an EEG or do they increase at budging of each and decrease towards the end of each phase? Kind regards

  • @projectgetbetter4354
    @projectgetbetter43542 жыл бұрын

    Thanks for the amazing video. Helped me memorize a lot of things. Thumbs up!

  • @kitkat586
    @kitkat5863 жыл бұрын

    You are the best!!

  • @alejandroandres959
    @alejandroandres9593 жыл бұрын

    Thank you!

  • @fatm4403
    @fatm44032 ай бұрын

    Can’t thank you enough ❤❤❤

  • @edkensalexandre7043
    @edkensalexandre70433 жыл бұрын

    His presentations are sooo engaging. I wonder which application he uses to make these videos. Loving them

  • @x0r0xannex0
    @x0r0xannex03 жыл бұрын

    thank you Dirty!!!

  • @sonja_nb
    @sonja_nb Жыл бұрын

    Thank you soooo much for this super useful video!

  • @dheeraj5476
    @dheeraj54763 жыл бұрын

    Best and my fav channel....keep up the great work.... Love from India☺☺

  • @ninjanoodles22
    @ninjanoodles223 жыл бұрын

    Great video, thank you!

  • @jackt6110
    @jackt61103 жыл бұрын

    Another great video, thanks!

  • @Caffinatedmedic
    @Caffinatedmedic3 жыл бұрын

    Great teacher 👍

  • @shahidumar6978
    @shahidumar69782 жыл бұрын

    Uworld says OSA is a disorder of REM sleep.

  • @ifhamjawaid817
    @ifhamjawaid8173 жыл бұрын

    Love this

  • @sekhsalmanvlogs1562
    @sekhsalmanvlogs15623 жыл бұрын

    Great video, in this video, i got answer of many competitive mcq questions

  • @manjuparimala8365
    @manjuparimala83653 жыл бұрын

    Thank you

  • @2468ayesha2468
    @2468ayesha24683 жыл бұрын

    Great video as usual 👍🏼

  • @maryamsulaiman4801
    @maryamsulaiman48015 ай бұрын

    This guy is good! Why am I just finding this page out?!

  • @gerardmoran9560
    @gerardmoran956011 ай бұрын

    Thanks for a great video! I'm neither a clinician nor a student but I've always been intrigued by sleep. Is it your organizational style or am I missing something? I would have thought that REM would be between awake and N1-3. Is it normal to have a brief REM period as you initially fall asleep? Loved the memory tricks. Thanks

  • @fullyexplainedshortmedical5032
    @fullyexplainedshortmedical50323 жыл бұрын

    thank you

  • @medico6060
    @medico60607 ай бұрын

    Thanks a lot dirty ! U are amazing ❤

  • @kpa742
    @kpa7423 жыл бұрын

    U r the best

  • @sepidehmortezaee4499
    @sepidehmortezaee44993 жыл бұрын

    Thank u so much🙏🏻🙏🏻soo helpful🙏🏻

  • @defacto_8840
    @defacto_88403 жыл бұрын

    Thanks!

  • @babel1083
    @babel10832 жыл бұрын

    Very nice 🔥🔥🔥high yield 🔥🔥 thankyou.

  • @realS_ogora
    @realS_ogora3 жыл бұрын

    Great video

  • @deepalitiwari655
    @deepalitiwari655 Жыл бұрын

    Wow nicely explained thank you

  • @xaaboopinkly
    @xaaboopinkly3 жыл бұрын

    Thanks sir 💕💕💕

  • @PS-pr5py
    @PS-pr5py3 жыл бұрын

    another HUGE video! Thank you!

  • @DirtyMedicine

    @DirtyMedicine

    3 жыл бұрын

    Thanks for being a Dirty Medicine member!

  • @darrenleung1626
    @darrenleung16263 жыл бұрын

    Tysm for this ❤️💕🥺🥺

  • @pyrexcookin
    @pyrexcookin3 жыл бұрын

    for theta waves pathology there's also a higher abundance of theta waves occurring in ADHD patients

  • @pistachiopistachio4941
    @pistachiopistachio49412 жыл бұрын

    Amazing!! Would like to add one more disease associated with sleep called REM Sleep Behaviour Disorder where the patient enacts the dream as atonia is absent. Pt is easily aroused, remembers dream and is transiently confused. It's due to brain stem disorder which fails to inhibit muscle tone.

  • @nagaratnamsuthakaran3639
    @nagaratnamsuthakaran36393 жыл бұрын

    Thank you very much sir

  • @saimafarooq930
    @saimafarooq9309 ай бұрын

    Thanku❤❤❤❤

  • @thegenius3113
    @thegenius31133 жыл бұрын

    thank's alot

  • @heidirawls2312
    @heidirawls23123 жыл бұрын

    Awesome!

  • @jabirmohamed5094
    @jabirmohamed50943 жыл бұрын

    I press like before wathcing just for the CHANNEL name 😂

  • @tulasazenith951
    @tulasazenith9513 жыл бұрын

    Thank you😊😊😊🥰🥰

  • @benbuttars5594
    @benbuttars55943 жыл бұрын

    I got a question about the neurotransmitters involved as well. So use this video as a base to get those down.

  • @sheilachan100
    @sheilachan1003 жыл бұрын

    youre awesome! Love you

  • @mohammadparvez2284
    @mohammadparvez22843 жыл бұрын

    Tq for my revision

  • @sunfield2814
    @sunfield2814 Жыл бұрын

    Thank you 😊 Just wanna point out sawtooth waves in REM.

  • @langhejoel9272
    @langhejoel92722 жыл бұрын

    The best

  • @Itried20takennames
    @Itried20takennames3 жыл бұрын

    These are awesome. Your audience is somewhat limited, but otherwise I am sure you would have way more views and likes. Thanks.

  • @hannahroth5788
    @hannahroth578824 күн бұрын

    The sigh of relief when you find a dirty medicine video for a topic you need to study

  • @rojarj61
    @rojarj613 жыл бұрын

    great video, commenting to help with algorhythm^^

  • @silvermartin4160
    @silvermartin41603 жыл бұрын

    Nocturnal tumescence is important because it tells you IF the person is physiologically capable of obtaining an erection. I'm guessing some urologist somewhere is sitting around making sure their questions show up on every part of the exam possible. It's also thought that they provide improved blood flow preventing what some describe as "turtle" syndrome or shrinkage after loss of ability too obtain erection. Thanks for this video, saved me hours!!

  • @danieldonascimentoaraujo3221
    @danieldonascimentoaraujo32212 жыл бұрын

    thank u

  • @muhammadjunaidali769
    @muhammadjunaidali7693 жыл бұрын

    Awesome

  • @shevanz1589
    @shevanz15896 ай бұрын

    Watches this before reading through lecture slides. Then reads through lecture slides: understands everything. Chad life 😎 But seriously, thank you.

  • @ryanh.nguyenmd5357
    @ryanh.nguyenmd535711 ай бұрын

    Tks, nice

  • @ayshaawan6476
    @ayshaawan64769 ай бұрын

    Can you make more videos on sleep medicine please?

  • @varunlakhmani3493
    @varunlakhmani34933 жыл бұрын

    Thank you dirty!

  • @nervgear2254
    @nervgear22542 жыл бұрын

    I get a lot of theta waves when I'm awake, most of the waves amplitude ( up or down ) is theta . The rest of the waves are pretty much the same on RAW EEG. MRI and medical EEG checked fine, but what is theta wave suppose to mean when I'm awake and goes through the whole day like this. * Readings with a 16 electrode, on the prefrontal cortex

  • @banankhalid4072
    @banankhalid40723 жыл бұрын

    this was one of the best videos online regarding this topic THANK YOU

  • @Estheriix
    @Estheriix2 жыл бұрын

    I had an 8th grade teacher who suffered from Narco. She’d go fast asleep right in the middle of a lesson.

  • @rahulmehta7935
    @rahulmehta79353 жыл бұрын

    200 k soon

  • @jamesjackson9374
    @jamesjackson93743 жыл бұрын

    Nice vid

  • @ramseslong5614
    @ramseslong56143 жыл бұрын

    🔥🔥🔥

  • @akshitayadav4247
    @akshitayadav42472 жыл бұрын

    I’m glad I found your channel The content is amazing 🙌

  • @RT-py5sh
    @RT-py5sh3 жыл бұрын

    Better than online meded.

  • @ahmadsadain203
    @ahmadsadain2033 жыл бұрын

    Nice

  • @ramoncorintihans5075
    @ramoncorintihans507510 ай бұрын

    I have sleep Apnea. I looked at my sleep study and it shows four stages before REM sleep. I was never in stage 3 or stage 4. I jump from stage 2 to REM. Further the time in each stage was: Stage 1 around 5%, REM sleep 20 to 30% and the rest in Stage2. Can you comment on this?

  • @ayushimittalmail
    @ayushimittalmail Жыл бұрын

    when you say the length of N3 decreases through the night do you mean that the length decreases through the time of the clock say as we sleep at 10 pm as opposed to 3 am or you mean to say that IF One is sleeping 6 hours a day be it 10 to 4 or 3 am to 9 am there is going to be a gradual decrease in the length of the N3 stage THROUGH THAT NAP?

  • @Salam_1965

    @Salam_1965

    11 ай бұрын

    The will be gradual decreases in the length of each period of N3 and increases in the length of each period of REM. They go opposite of each other. The first 3 hours of sleep you have more N3 and the next 3 hours toward morning you have more REM

  • @shreyaraghavan10
    @shreyaraghavan103 күн бұрын

    isnt obstructive sleep apnea prevalent in REM sleep as well?

  • @Leonvelikii511
    @Leonvelikii511 Жыл бұрын

    I have a question. Many books mention that NREM has 4 stages. I would like to know about the cycling of these stages. After which stage comes which stage, and at what point does the cycle restart or return. Please talk about REM Latency more; what are 90 minutes of REM Latency.

  • @Salam_1965

    @Salam_1965

    11 ай бұрын

    In the past NREM used to be 4 stages: 1, 2, 3 , and 4. Now it’s only N1, N2, and N3. REM latency is 90 minutes which the time from Sleep Onset to the beginning of REM sleep. How sleep stages progress? It usually start with N1 then N2 then N3 then REM. Most of the time REM occurs after N2 because as we progress into sleep toward morning there is a gradual decrease in N3 and gradual increase in REM. N2 is 50% of total sleep so it spreads throughout the night and is usually followed by N3 or REM. N1 occurs at beginning of sleep and sometimes after brief arousal or awakening and it’s 5% of total sleep. I hope this is helpful.

  • @xiomaramichellelopez2672
    @xiomaramichellelopez26723 жыл бұрын

    I love you

  • @joshmcgoo
    @joshmcgoo3 жыл бұрын

    commenting for the algorithm

  • @nanf3176
    @nanf31763 жыл бұрын

    🤞👏

  • @sherifg7243
    @sherifg72433 ай бұрын

    Obstructive sleep apnea in increase in REM and not N1 stage

  • @zevaneleven
    @zevaneleven2 жыл бұрын

    POV: ur in bed at 3 in the mornin and can’t fall asleep so you have decided to learn about sleep instead of trying to sleep

  • @Maria-on4co
    @Maria-on4co Жыл бұрын

    i remember "two"th grinding instead of tooth grinding to remember its association with N2