I exercise regularly and have to say it's another one of the best things I could have started doing for myself...mind and body...
I do cardio; ride the stationary bike for 10 min, jump on my mini-trampoline for 5 min, jump-rope for 5 min...4 days/week, and I alternate working out my upper body including my abs (stomach crunches, no sit-ups as they're not near as effective and can be a strain on the neck) and lower body also including abs, so 4 days a week I do cardio for 20 mins and do abs and then I follow with either working my arms, back (upper body) then the next day I work my legs, butt, lower body with weights...I have a home gym, I've got everything I need, stationary bike, weider universal gym, dumb-bells, trampoline, punching bag, body slider (I do 1/2 hour of all cardio every couple of weeks on a Saturday including doing my regular work outs monday-thursday...monday; arms/upper body, tuesday; legs/lower body, wednesday; arms/upper body, ect. Each day I start with the cardio then I do the weights so I work out for about
an hour and 10 minutes or so total.
If you eat junk and take in too many calories you will get thicker and as a woman you likely won't want that so you have to be careful with diet...diet and exercise go hand in hand, if you're eating junk and exercising you won't get toned or as healthy as you should as you would if you're eating healthy...trust me, I speak from experiance.
My bum is broken....there's a big crack down the middle of it! LOL :)