Insomnia – causes, symptoms, diagnosis, treatment & pathology

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What is insomnia? Insomnia's a type of sleep disorder where somebody has trouble falling asleep or wakes up throughout the night. Subscribe – More videos – Support us on Patreon –

This video discusses the definition of insomnia, as well as the diagnostic criteria and signs and symptoms.

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Audio/visuals: Tanner Marshall, MS
Script: Brooke Miller, PhD
Reviewer: Rishi Desai, MD, MPH


  • ego. v

    *watches @ **3:00**am*

  • rock n roler

    I just have to much extra energy even after 3 bike rides 2 runs and swimming in the river I don’t drink coffee this is rediculess how can one person have this much energy

  • American Girl Emily

    I cry myself to sleep now if I can. It’s 7:15 am and I’m still awake and very depressed 🙂

  • the golden sheep

    umm hmmm I think I screwed up than am watching this at 11:00pm darn I made a mistake

  • Chi Kagami

    I’m not sure if I have insomnia. I was on school break and I slept later than usual and started having the habit of sleeping all day and staying awake all night like a owl then I tried sleep medication so I could go to sleep regularly and it was interrupted and I dont wanna have that day to day basis on sleeping pills cuz it doesnt sound healthy so I tried to take day nap early in the morning I thought maybe I would be sleepy again at night that didnt work so I slept for a few hours in the day and tried to stay sleep longer to get into that hour zone to sleep regularly (I dont know why I even thought that one would work) and I tried to stay up for a whole day (day and night) and wait till the next night to get rest and I fell asleep in the day and failed at my plan and its an endless circle and the only time I can sleep is in the day like a vampire or owl geez if u have any suggestions on what to do, feel free to leave a comment. Have a nice day 🙂

  • piyush agrawal

    I have a doubt.
    wether the total amount of sleep is reduced in insomnia or just the pattern of sleep has changed ( sleeping from 5 in morning till 11 ) or it means reduced total amount of sleep .

  • Lol_Tracker36

    I have trouble falling asleep but when I do I only sleep about six hours and I feel good during the day.

  • Matthew Finnigan


  • mardizon porsuelo

    please reply ineed your advice huhuhu i have a sleeping problem please give me some advice
    I am scared to go to sleep. I am literally scared of the night (sleep).

  • im confused

    This happened to me every night not just 3/7😭😭

  • im confused

    I will lye there for 2hrs with my eyes closed before falling asleep and I normally try this around 4:00 in the morning

  • oo1 ALBM

    watch at exact 03:00 am

  • Jocelyn Nmoreno

    im up at 1:08 i cant go to sleep i try so hard but then i wach this and im like i have this and HELP ME i cant go to sleep and i HAVE SCHOOL TOMOROW

  • emo sio_tøp_mcr_fnaf_fob_p!atd

    I’ll sleep when I’m dead by set it off hear it

  • justin bieber

    Great.. I have bipolar disorder, anxiety disorders, anorexia, and insomnia..😑..I’m just feeling terrible..

  • Mike P

    Low D-vitamin values and magnesium levels can cause problems with sleep together with Mobile and computer during evening.Would rather suggest taking magnesium and Omega-3. I am not a Doctor but it helps me.

  • Simian Smith

    I want to fall asleep but my mind does not want to, what do I do?

  • Coямαc TD

    i’m only 10 and i’ve been staying up all night every week just because i cant sleep

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