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South Africa
A 37-year-old male asked:

Hi, a muscle in my upper arm started twitching regularly about 4 days ago. it comes and goes. can bad sleep be the cause. is it reason for worry?

1 doctor answer4 doctors weighed in
Dr. Philip Galapon
Specializes in Family Medicine
Depends: A lot of the time, when you are stressed, malnourished, or not sleeping well, your muscles will twitch and jerk to try to reset. If you have injured your neck or spine, then you should have your family physician check you.

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Last updated Nov 27, 2017

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