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What is difference between sit down and sit up?

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closed as general reference by tchrist, RegDwighт Feb 14 at 16:52

This question is too basic; it can be definitively and permanently answered by a single link to a standard internet reference source designed specifically to find that type of information. See the FAQ for guidance on how to improve it.

1 Answer

If you're standing, you can sit down.

If you're lying, you can sit up.

If you're slouching in a chair untidily, you should sit up. It's better for your back.

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Thanks! I like it. – Jhababan Feb 14 at 16:58
"Sit Down" is one of my favorite James songs. Sit-ups are among my least-favorite forms of exercise. – MT_Head Feb 14 at 17:03

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