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This is Scientific Americans' 60-second science. I'm Karenkin. Are you one of those people who can tell when a storm is approaching based on your achy knees? Well, you may think you are, but a new study of more than 1.5 million seniors finds no relationship between rainfall and doctor visits for pain. The results are in the British

Medical Journal. The idea that our bodies are barometers for all sorts of weather-related

phenomenon, including changes in temperature, pressure, and precipitation is not a new one.

Hippocrates himself actually postulate this idea in nearly 400 BC.

Anupam Jena, a physician and expert in health care policy at Harvard Medical School and the

Massachusetts General Hospital, who led the study.

If you talk to people, I'd say millions and millions of people probably believe that things

like rainfall influence symptoms of joint pain and stiffness. But if you look at the studies,

there's actually been surprisingly little evidence to suggest that is true. Most of the studies

have been quite small. And we were interested in thinking about whether we could approach

this question in a big data sort of way. He and his colleagues looked at information collected

in more than 11 million visits that older Americans made to their primary care physicians.

They compared these records with data on daily rainfall.

And they asked, do more people report sore backs or swollen joints when the weather is inclement?

And what we found is that if you look at days where it rained versus days where it didn't

rain, there is no difference in the proportion of visits to a doctor that involved a complaint of

joint pain or back pain. They saw no rain effect, even when it poured for seven days straight. And if you're

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