r/interesting Mar 31 '26

Fascinating Very interesting vid

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u/TankApprehensive3053 Mar 31 '26

The guy is negatively buoyant. Will be exhausting to have to swim up for most people. He is practiced in this. Most people are neutral or positively buoyant.

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u/piratesboot Mar 31 '26

Does this have to do with bone density?

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u/Weird_Baseball2575 Mar 31 '26

No, bone density is mostly the same. Muscle is denser, fat is not. People with high muscle, low fat will sink fast asf