As I sit down to write about the role of exercise in the aging, I am conscious of the pleasant and relaxing effect of a brisk walk in the clear cold air of Santa Fe and the hills around. As a senior member of society, I can vouch for this particular positive effect of exercise; for many aging persons this may be its chief value. However, there are other physiological results of exercise which deserve as much emphasis in the aging as they do in the young, and possibly even more.
Though such effects of exercise are frequently referred to in the presentation of health programs, they are but little discussed in planning for the health and happiness of older persons. To be sure, no hard and fast rules about exercise can be laid down for everyone of a certain age, in the first place, because no two persons have