By Dr. Mercola
'Exercise is a critical part of a healthy lifestyle, and it can be a part of your life no matter what your age. In fact, staying active becomes increasingly important as you get older, both for your physical and mental health.
Even frail seniors of advanced age can improve strength, agility, and even cognitive ability with exercise.
Loss of bone mass is one of the common signs of aging, because as you age your existing bone is absorbed by your body while new bone is created to replace it.
In the case of osteoporosis, the formation of new bone falls behind the rate of bone absorption, leading to weakened, thinner and more brittle bones.'
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