"My knee hurts, that's why it's going to rain"
Surely on more than one occasion you have heard expressions like this. But is there any truth to this belief?
Cloudy with a chance of pain.
Blame it on the barometric pressure. Any change in atmospheric pressure can trigger headaches or joint pain in some people.
The joints contain baroreceptors, which are sensory nerves that respond to changes in atmospheric pressure. These sensory receptors are activated when atmospheric pressure drops, that is, when the atmosphere goes from dry to humid, which is what happens when it is about to rain.
Changes in barometric pressure, as well as changes in humidity and temperature, can also affect the pressure on the brain, or the way the brain blocks pain. So some people, on cloudy and / or rainy days, have more headaches and migraines.
Joint pain associated with meteorological phenomena appears mainly in patients with rheumatoid arthritis, osteoarthritis or some old fracture.
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