How come when i stare at a tv or computer for a long time, my teeth feel really stiff and weak?!

Question: How come when i stare at a tv or computer for a long time, my teeth feel really stiff and weak.?

i just played a game online for a long time and my teeth feel really loose and i feel really tired nowHealth Question & Answer

Answers:

You are clinching your teeth together. Make a concious effort to leave your teeth slightly apart.Health Question & Answer

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How come when i stare at a tv or computer for a long time, my teeth feel really stiff and weak?!

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