What precautions should seniors take into consideration when starting a new exercise program?

As you get older, your body change; muscle mass and bone density become lower, and you turn into an unbalanced, uncoordinated man. The risk of fractures and falls is the aftermath. The heart will change too.
Based on the National Academy of Sports Medicine, some diseases like arteriosclerosis and hypertension increase as you age. That’s why if you were sedentary before or have a chronic illness, you must go for a physician’s approval before starting an exercise routine.