Why do your thighs expand so much when sitting down?
In: Other
They’re not expanding – tissue is just being redistributed from the back to the sides. The only solid parts of your leg are the bones. When you push on any part of your body, the squishy meat parts squish – for example, if you press down on your stomach, you can press down quite a long way and you’re only stopped by pain. When you do that, the tissue doesn’t disappear, it gets moved to the sides, which is what’s happening with your legs – the entire weight of your torso, arms and head is pushing down on the bottom of your legs, which pushes the muscle on the back of your thighs to each side, giving the appearance of expansion when you look down from the top.
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