It's not going to help breast tissue stay up, but there are some good exercises. Who knows, perhaps working on chest muscles helps breast tissue a little.
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Increase your flexibility with this set of dynamic stretching exercises. A 10 minute routine for women with music playlist, calorie calculator and timer. http://www.spotebi.com/workout-routines/flexibility-exercises-dynamic-stretching-routine-for-women/
Stretch your entire body with this set of flexibility exercises. A static stretching routine to improve joint range of motion and stretch muscles and tendons. http://www.spotebi.com/workout-routines/flexibility-exercises-full-body-static-stretches/
Warm up your abs and lower back with this bodyweight at home core warm up routine. Get your heart pumping and prepare your core for a strengthening workout. http://www.spotebi.com/workout-routines/bodyweight-at-home-core-warm-up-routine/
Warm up your entire body at home with these dynamic warm up exercises. Raise your heart rate and prepare your body and joints for the workout to follow. http://www.spotebi.com/workout-routines/full-body-at-home-dynamic-warm-up-exercises/
Stretching is the best way to care for tired muscles. This sequence of 17 stretches with lengthen your entire body and leave you feeling energized.
People who lead sedentary lifestyles often have issues with their glutes, as they can become atrophied and sore.