Recently, the news of a 20-year-old girl who died suddenly while working out was circulating on social media. The hospital where the girl was seen was told that 30 minutes before she came to the hospital, she had been exercising in a gym and suddenly fell to the ground at rest, and was immediately given cardiopulmonary resuscitation by the staff at the scene, and then sent to the hospital via 120, but her resuscitation was ineffective and she eventually died. The incident caused a buzz on the Internet, how to carry out exercise more effectively and safely? It has become the focus of attention. The blind pursuit of large amounts of exercise risk sudden death For healthy ordinary people, doctors believe that the biggest point to avoid sudden death tragedy, is to “scientific fitness”. With the modern awareness of health, many people have suddenly developed the idea of fitness and exercise. However, the blind pursuit of large amounts of exercise is very unscientific, but also easy to bring additional burden on the heart. On the contrary, continuous, regular small and medium intensity exercise, is the most appropriate. In order to pursue fitness effects, tired and panting, sweating, the pursuit of exercise intensity, and even challenge the physiological limits, which are not desirable. Once you appear in the process of exercise chest tightness, chest pain, lack of oxygen, dizziness and other symptoms, we should pay attention to these body signals, do not be careless, should immediately stop exercise as soon as possible to go to the hospital for examination. In addition, to regular life, work and rest, pay attention to life and living. Remember: “Sudden death is a momentary event, but the factors that lead to this result may be the accumulation of years and years of blind exercise, so you should start from the little things in life, do not let the heart too tired. Aerobic exercise, happy to move the “heart” Aerobic exercise is characterized by: not too strong, rhythmic, uninterrupted and longer duration, harmless to the human body. Walking, jogging, easy to play ball, swimming, slow climbing, bicycling, aerobics, tai chi and other sports or ways belong to the medium-volume aerobic exercise. For people of different ages, a rough estimate of moderate exercise is: heart rate = 170 – age, for example, 50 years old, exercise to reach 120 beats / min, about 90% of the equivalent of the maximum exercise at that age, is a moderate intensity of exercise. The same age, each person’s physical condition also varies, so also according to the feeling during and after exercise to judge. Generally speaking, exercise to a slight sweating, slight muscle pain, no obvious fatigue, rest to recover, the next day is still full of energy, the desire to exercise, that the exercise is more moderate; if sweating, shortness of breath, chest tightness, do not think about eating, there is a clear sense of fatigue, feel your pulse after 15 minutes of rest, such as still do not recover, and the next day you feel weak, sore, this is a sign of excessive exercise If you do not recover, and you feel weak and sore the next day, this is a sign of over-exercise and should be adjusted in time.