Why do old injurys ache/hurt when it rains?

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Why do old injurys ache/hurt when it rains?

In: Biology

when it gets cold or rains your body starts to contact its muscles to keep in body heat, but this often will cause nerves around the injured area to get agitated and thus you feel a good old doctor dose of pain.

worst is when it locks up in the middle of the night and you wake up feeling some hefty amount of pain.

Normally when someone says they can feel the rain coming what they mean is they can feel the barometric pressure change

Your body has little bits of air and fluid all over, especially around joints.

It reacts to air pressure outside your body, but slowly. If weather systems change quickly, the sudden change means the little bits of air or fluid inside your body are suddenly out of whack with surrounding environment and are either pushing extra hard, or are being pushed on extra hard. If you’ve ever driven up/down mountains or flown on a plane you’ve probably felt this in your ears as your ears pop. Some people also feel it in their knees or other parts of the body.

Either way, your nerves relay the change to the brain as pressure or pain until the little air/fluid pockets re-adjust to the new air pressure outside your body.