Questions tagged [musculoskeletal-system]
20 questions
16
votes
1 answer
Are there any side effects to cracking knuckles?
I constantly crack (or pop) my knuckles. Are there any negative (or positive) side effects to it? I like to crack my knuckles, but I want to stop if it can have negative effects. What have scientific studies said about this subject?

dhilipsiva
- 263
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2
votes
1 answer
Why is patting your head and rubbing your belly at the same time considered difficult to do?
According to the internet, it's difficult to simultaneously pat your head and rub your belly.
Here's another one:
"How smart is your right foot"?
Sit down, lift your right foot and do clockwise circles. While doing that, draw number 6 in the air…
user1840