Conditions that predict weather

(CNN) -- Robyn Nichols always knows when it's going to rain. She can feel it in her bones -- literally.
Having lived with rheumatoid arthritis since she was 2 years old, Nichols, now 37, is able to sense a change in the weather up to two days before it happens.
Even at a young age, she was something of a meteorologist.
When her elementary school class began learning about the weather, one boy piped up, "Why don't we just ask Robyn? She can tell the weather with her knees."
Despite some positives, like always knowing when to tote an umbrella, her sixth sense carries a price: painful joints and difficulty moving.


http://www.cnn.com/2011/HEALTH/02/15/conditions.predict.weather/index.html?iref=allsearch