running. running. running. running. and hmm RUNNING.....but you should start out slowly every other day because once you try to do lets say 1 hour on the first day you will probably get very exhausted and discouraged and might even give up. If you try it for 15 minutes one day then add another 15 minutes gradually each day you will enjoy it and it will become a lifestyle not a chore.
Go running for as long as you can outside. and if you want to make your stomach slimmer, do about 100 sit ups every day (thats what i do) but when you first start do about 25 a day then work your way up.
Anything intense. Do sprint intervals for 20 minutes instead of walking or jogging for 60 minutes.Do super heavy weights instead of just light weights to tone.Things of this nature really kick your body into overdrive.
Go jogging a mile or more every day. It increases endurance, burns fat, and builds muscle.
treadmill, or high intensity weight lifting (meaning a lot of reps and little rest)
high impact aerobics
