One past blog post has been on the immense good effects of supporting your body weight, like when you get up and down from the floor. Here is an article aobut a study of older adults, and how getting up may predict mortality.
http://www.cbsnews.com/8301-204_162-57559095/sitting-and-standing-test-may-predict-mortality/
http://www.cbsnews.com/8301-204_162-57559095/sitting-and-standing-test-may-predict-mortality/