She has changed her diet and exercise over the years. Seems like coffee and alcohol are pretty much gone and she is heavy into veggies vs meat. I'm quite certain her exercise changes are more due to what she cannot do anymore; a decade ago she went from treadmill to elliptical because the pounding of her breasts while trying to jog was too much, but the exercise videos seem to suggest that she has moved on to resistance stretching and squats, apparently her focus is legs and abs. When you think about it, they are the muscles stressed by her in routine daily living.