Three half minutes a day – to prevent cardiac ischemia 1, wake up do not immediately get up, lie in bed for half a minute 2, sit up and sit for half a minute This half-sitting position makes the heart and blood vessels begin to increase the burden, because the head in the upper position, but the legs are still flat. This is a process of adaptation and warm-up. 3, two legs down on the edge of the bed and so on for half a minute This is another warm-up, so that the heartbeat vascular system to adapt to the upright state. These three and a half minutes are very important, without spending a penny, can reduce a lot of unnecessary sudden cardiac death, angina, cerebral hemorrhage. Three and a half hours a day – to reduce morbidity 1, move half an hour in the morning Get up in the morning and exercise for half an hour. Play tai chi, run, or other sports, but it depends on the person, the right amount of exercise. Secondly, half an hour of sleep at noon, which is needed for the human biological clock 2, half an hour of sleep at noon The elderly sleep early at night and get up early, so they also need to supplement sleep at noon. 3.Walk half an hour at night Walk slowly for half an hour at 6 to 7 pm. The elderly sleep well at night, can reduce the incidence of myocardial infarction, hypertension. Exercise keep in mind the three standard numbers – so that the most effective exercise The best exercise is walking. How to walk the best? Three words: three, five, seven. 1, “three”: the best once three kilometers for more than thirty minutes. 2, “five”: at least five times a week exercise. 3, “seven”: exercise to your age plus heart rhythm equal to 170. For example, 50 years old exercise to 120 heartbeat, 60 years old exercise to 110 heartbeat, 70 years old exercise to 100 heartbeat, adding up to 170. such exercise is the best effect, can help diabetics to control blood sugar and prevent complications.