#1) When I am done working out, and the muscles feel like jelly, what is the cause of that? It's not like they're sore right after, but it's hard to do things like I'm really weak..is that just the depletion of ATP from the work out? Just curious about the phsyiology of it. #2) After I work out, I typically take a hot bath (about 1.5 hours) later. Does this burn a lot of calories? I know the raise in body temperature burns calories, but how significant is it (I usually sit in there for 10-15 minutes). Also, does this put me into a catabolic state, rather than anabolic? #3) Where do babies come from?