How does anesthesia work? - Steven Zheng

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Published 2015-12-07
View full lesson: ed.ted.com/lessons/how-does-anesthesia-work-steven…

When under anesthesia, you can’t move, form memories, or — hopefully — feel pain. And while it might just seem like you are asleep for that time, you actually aren’t. What’s going on? Steven Zheng explains what we know about the science behind anesthesia.

Lesson by Steven Zheng, animation by Zedem Media.

All Comments (21)
  • @lola.stanley
    I remember being so scared and making the surgeons promise they won't start until I'm asleep because I was convinced the anesthetic won't work on me (I used to have a hard time falling asleep), they asked me to count down and I got to six, blinked, and saw that I was being wheeled out of the surgery room after the operation----bless the amazing souls that build modern medicine <3
  • @lizzieb1318
    heart surgery in two days! wish me luck! i'm pretty nervous :(
  • @ramencarmen
    if you are getting surgery soon please dont be nervous. I had surgery 3 days ago and was very nervous and getting stressed. when they did my surgery i remember falling asleep and waking up in the recovery room. i was getting nervous for nothing and everything thing went perfect :) i promise you'll be okay, wishing luck to everyone <3
  • I cut my finger off and during the reattaching surgery I woke up and asked the doctor how it was going. I can still remember all of the faces of the surgical team looking at me wondering why I was awake. I told them I guess I shouldn’t be awake and went back to sleep. Definitely a crazy experience and I do remember being super cold and I think it’s the reason woke up in the first place
  • @patbrennan6572
    Hats off to all those anesthesiologists that help keep us safe during surgeries. Keep up the good work .
  • @denisford4303
    I had surgery yesterday, and don't remember much of it. There was a flash of white light in the operating room, and then I woke up in the PACU. It felt like I was resting my eyes. A very successful procedure. I wish I could thank the anesthetist!
  • @KhemistrySet
    This is probably the first time ever where the comments are more useful than the video. I have an operation coming up & I was absolutely terrified of going under GA. All your stories have given me great comfort. Thank you all ❤️🙏🏾
  • @alexpearson7693
    They tell you “are you ready” and you wake in a different room right after. Freaky feeling
  • @DCTexas22
    I perform anesthesia daily, and I am grateful for my practice and the art of caring for patients.
  • Nothing is crazier than a c-section though. A major surgery where you are wide awake but the anesthesiologist is there with you the whole time. I was so scared that my anesthesiologist’s main job was to hold my arms down because I was shaking so terribly, and then as soon as my son was born, he had to give me a very high dose of pain medicine to stop the tremors. He was my hero that day. Sat there and calmed me down by saying how often he did this procedure and how it’ll just take a couple of minutes and then I’ll be a mommy. It was so scary and beautiful at the same time. Hard to describe.
  • Getting anesthesia is one of the best experiences I've had in life. It's fascinating to me how it works. The IV goes in, a couple seconds later you feel a fuzziness in your head, then see white and the next minute someone is telling you to wake up. Fainting provides the same exact effect. It's unfortunate they both happen under not so pleasant circumstances. If only sleep could be THAT uninterrupted. You don't hear anything, see anything, think about anything, feel anything, nothing.
  • @jacobtran4010
    SHOUT OUT TO ALL THE REAL ANAESTHESIA DOCTORS OUT THERE. Y'ALL THE REAL MVP. <3
  • @LWWM
    I had surgery recently. I woke up in recovery counting backwards. The nurse was like "what you doing" I told her "counting like I was told" she then told me my surgery was over hours before.
  • @chopchan7643
    Just had my third surgery, and I was lucky enough to thank my anesthesiologist today! Him and his assistant did amazing, along with the surgeon!
  • @KK-rl9xb
    I can’t believe how invested I got in this thread. I just read it all just now and it was like a suspenseful movie. I’m so glad I found you we’re ok!!
  • @M2dIKE
    I think anesthesiologists have one of the thankless jobs in the world. We always thank the surgeons for everything they do(and that is deserved) but theses guys are the reason surgeries are so much smoother than a few decades ago.
  • @mrdasilver
    I remember going into surgery I was so nervous while the doctors were all laughing and trying to make me feel better. They told me they were going to give me the "courage medicine" and asked me to count down from ten. I got to nine, and next thing I knew I was waking up in a different room laughing my head off for no reason. Now I'm considering becoming a nurse anesthetist. The end.
  • @abc12345ten
    Message to those who are nervous for their surgery: I'm a female teen who just had her first surgery, I remember being absolutely terrified for it - the general idea of surgery and anesthetics to me seemed so painful and daunting. Anesthesia works like a charm, the drug dosages for you are all carefully pre calculated by the anesthesiologist prior to the operation, so the chances of you waking up during surgery, or not waking up after are really really rare, besides, the anesthesiologist and nurses will be carefully monitoring your vital signs during surgery. If you're under general anesthesia (which I was) you will not feel pain at all or remember a single thing, and the surgeons/doctors/nurses are all professional so you are in good hands during the surgery. I remember the doctor saying, "We're going to start", and within 3 seconds, I fell asleep and the next thing I know is that I'm in the recovery room. Hope this helps to anyone who's reading it, good luck!! Also, watching this video (but especially reading the comments) really helped calm my nerves. So thank you so much!!
  • When I was under anesthesia for Appendicitis, I wasn't told to count from 10. In actuality, I was just chatting it up with the surgeons, before the next thing I knew, I was in a bed in a completely different room. On top of that, unlike everyone else who seems to have had a calmer experience after the surgery, I was in complete and utter agony from where I had my appendix removed, so much so that the first sounds out of my mouth were LITERAL SCREAMS OF PAIN. At least later on we traced it to improper application of stitches, but that definitely made an already horrible christmas even worse.