Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Involuntary twitches

  1. Feb 2, 2006 #1


    User Avatar

    Why do sometimes my muscles twitch for no reason. It happens by your eye, it happens in your arm, why? a muscle around my knee just twitched, and I wondered why.
  2. jcsd
  3. Feb 2, 2006 #2


    User Avatar
    Science Advisor

    Do you take stimulants by any chance? Coffee? Tea? Asthma inhaler? Ritalin? Adderall? Chocolate?
    I don't know about you, but my eyebrows start to twitch really bad if I've had too much coffee.

    Interesting fact I found while making this post: chocolate is poisonous to cats and dogs because they are unable to effectively metabolize theobromine. Just thought I would share this.
  4. Feb 2, 2006 #3
    What papers said coffee brings up twitches ?
  5. Feb 2, 2006 #4
    I don't know of any papers that say that, but just from common sense, it seems like an excess of energy can cause your muscles to twitch, especially if you do not exersize regularly. Also when I was really stressed two years ago my right eye had a twitch going constantly. My teacher noticed it and said that I needed to relax.
  6. Feb 2, 2006 #5
    i think it is due to the veins that can't hold up the blood flows at a certain moment, it may also be an excess blood concentration over a particular area.
  7. Feb 2, 2006 #6
    Thats a good question. I think most mild twitching is due to stress. It seems like its your body's way of trying to relieve it. During exam week I find myself twitching on a regular basis. :biggrin:
  8. Feb 2, 2006 #7


    User Avatar

    I am very low stress, and do not consume stimulants in any form. I get deja vu a lot though, several times per day, which Zooby and Hypnogouge told me are mild localized seizures in the hippocampus.
  9. Feb 3, 2006 #8


    User Avatar
    Homework Helper

    What you're experiencing are called fasciculations. Fasciculations can have many causes. Most often, they're fairly benign.

    Follow this link, and the link to "Benign Fasciculation Syndrome" :

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook