Does anyone have any suggestions for improving one's physical fitness? My school has a fitness requirement for my age of 36 push ups and 34 crunches, in addition to running a mile in about ten minutes. Bear in mind that despite being a martial arts practitioner, I've not done much physical fitness in the past four years. I have always joked that I am "allergic to running". I live in Texas where it seems like we're always under a "heat advisory". Does anyone have any suggestions?