One day I was playing golf with a surgeon. He had read the latest news about aerobics. He told me. You should make your heart pump as hard as it can. That will dilate all the major arteries in your body, including your heart. You should increase your heart rate as much as possible and keep it up for as long as possible. That will strengthen your heart muscles. After a few weeks, the tiredness will go away. He said. He also said that when you run on the treadmill, you should raise your knees as high as possible to your chest. But it is difficult for him. Because he is over 50 years old. So he walks on the treadmill. But he convinced me that some of his friends who had a feeling of tiredness, a feeling of sluggishness, run on the treadmill every day and that feeling is decreasing day by day. Now they are singing along with their steps. No one is tired. I asked. Are those friends of his friends, or are they just test subjects who mistrust his words?
