Einstein's cat would become depressed when it rained. The Great One (sorry Wayne ) would say to it, "I know what's wrong, dear fellow, but I don't know how to turn it off." And if he couldn't turn it off, we certainly can't. At least not yet. (We can only very occasionally turn it on). But we can do things to lessen its effects on us. For a start we can make sure we've got umbrellas, raincoats and Wellingtons ready. If we can predict it's going to rain then we can get these suddenly very valuable commodities out of the cupboard ahead of time. Proving that forewarned is forearmed. Now, depression (know how glum you feel when the atmosphere looks like the set of Blade Runner?) arthritis (granny always knew when it was going to rain) fibromyalgia, migraine, angina, asthma, are all health problems that can be ameliorated to some extent... providing we know that they are coming. That's the point of our MediClim Index. The whole point. The Index can help predict when weather changes are more likely to trigger health problems. If Einstein had known that his cat was going to be glum he could have done things to try and stop it happening, or make it less. With the help of the MediClim Index he could have known when it was time to 1) stop playing his violin (he was a poor second violin and cats sing, don't they? so they have a musical sense and we all know how bad a badly played violin sounds) 2) got in more cat food 3) taken his cat on a trip... The only question left to answer is "What was Einstein's cat called?" Suggestions please. Mine was "Relativity" John Bart.