Activity Planning Around Pressure Systems

I just discovered that there exists a weather forecast for the arthritic. There is a day arthritis index and a night arthritis index. (Going camping? There is also a mosquito index. Working outdoors...a UV index. Have asthma...an asthma index, Fearful of the flu...flu index, getting married? There's even one for you...a frizz advisory!). This really is fascinating stuff. Check it out here. The details of the arthritis index explain that it is well documented that arthritis sufferers can predict the weather based on the severity of their symptoms. Changing pressure systems, temperature, and humidity are all things that have been known to effect the symptoms of the arthritic. The part that interested me was the following: "arthritis sufferers can have advanced notice of when they are most likely to have increased pain, allowing them to take appropriate medication and to better plan activities".