Thanks for all the replies! It's great to be connected to such a smart group. I'm 47 and my metabolism/weight is an ongoing mystery to me. I'm 5'5" and holding at 116 lbs. most of the time. I'm a nurse and am familiar with sensible nutrition and dietary guidelines. But, for some reason there is a connection between this stifling weather and the fact that I'm suddenly up 2 lbs. I keep food and exercise logs and everything else is the same. I'm thinking that the heat is changing the way my body processes fluid. I don't drink sugared drinks. No way. I cannot ride early morning because of my night shift job. Can't ride late evening because of family routines. I had a bike wreck 2 years ago and now I always wear an undershirt beneath my jersey in case I crash again. The extra layers will protect my skin. I prefer warm weather but this is beyond my limit. I cannot handle drinking enough to hydrate myself. The water just sloshes around in my stomach and makes me sick. I get migraines if I get too hot. I really respect Tour riders because they have to have so many skills. Eating and drinking on the bike is just one of them. I sure hope we get relief soon!