Can bones get smaller?

Answer:
Yes, just look at old people.

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Only if you quite exercising. Why would you want smaller bones?

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Yes they can.. which is why as you age weight bearing exercises are more important than ever...

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over time your bones can break down and you can lose bone mass. Thats how people "shrink".

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Yes. Especially if you are an astronaut. Your bone matter wears down after being in space, and you lose a lot of calcium. I guess for normal people it's an aging thing if you don't drink a lot of milk.

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Bones lose density if nutrition is poor or if you have a bone disease like osteoporosis. Also, the entire spinal column shrinks and collapses a little after the age of 60. But bones don't get shorter.

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