It is not good to exercise on an empty stomach in the morning. It is beneficial to exercise at night. The important reason for choosing to exercise every night is that it is inefficient to do anything at that time. You can only eat snacks when you are tired and sleepy, so you will feel refreshed after exercise. Getting up in the morning to exercise, because of lack of oxygen in the air (exercise needs a lot of oxygen), is harmful to the body, especially for people who are thinner and have poor physique. I think it's better to exercise at night, not too intense. Conditional bathing is good for your health and sleep. It is best to exercise at night, and jogging is the easiest and best, which can enhance heart and lung function and physique. Exercise at night is the best, and proper exercise at night can also increase sleep, but don't forget to drink a cup of warm water before exercise. The best exercise time every day Many foreign scholars have revealed that the body's ability and state change day and night. Every day from 8: 00 to 12, from 14 to 17, muscle speed, strength and endurance are in the best condition. If you do physical exercise and sports training during this time, the effect will be better. But from 3: 00 to 5: 00, 12 to 14, it is in a relatively low state. If you are engaged in sports during this time, you are easy to get tired, and when the "load" is too large, the probability of sports injury is high. This shows that people should choose the best time to engage in sports activities according to the possibility of objective conditions in order to receive good fitness and training results. As far as health is concerned, it is effective to start exercising at any age. Exercise more when you have time, but exercise less when you have no time. Just move, even if it's just a trick. When do you exercise? This is a controversial issue. It is said that plants breathe out a lot of carbon dioxide after a night of metabolism, so the concentration of carbon dioxide in the Woods is relatively high in the morning, and some dust is floating in the air, which is not good for people's health. In addition, people's blood pressure is relatively high in the morning, which is prone to problems. In fact, whether to exercise in the morning depends mainly on the purpose of exercise. If it's to lose weight and increase the memory of motor skills, morning is good. When people wake up in the morning, they have consumed almost all the energy they ate last night. At this time, not eating and not exercising will lead to a result-"burning" fat. There is still some glycogen in the liver because there is no energy in the morning. When the concentration of these glycogen is reduced to a certain extent, fat "burning" will become the dominant way of energy supply, thus making it possible to lose weight. Therefore, exercise in the morning has special benefits for losing weight and preventing fatty liver. Besides, it is easier for people to learn aerobics, ballroom dancing and Tai Ji Chuan in the morning than at other times. Therefore, the health benefits of morning exercises are more in a sense. The ancients paid attention to "smelling chickens and dancing", and fitness was generally chosen in the morning. As for the carbon dioxide in the air in the morning, the serious pollution is not the main reason. In fact, the pollution of automobile exhaust during the day is also very serious, which will release lead, heavy metals and some chemical wastes, such as benzene. Blood pressure is high in the morning and can be adjusted by drugs. Therefore, when is the best time to exercise is not absolute. It also varies from person to person. Whether in the morning or afternoon, you should exercise moderately. As far as health is concerned, it is effective to start exercising at any age. Exercise more when you have time, but exercise less when you have no time. Just move, even if it's just a trick. Exercise should vary from person to person and step by step. Don't be too intense at first, and then gradually increase the amount of exercise, not just simple activities, to solve problems. In addition to heart rate, there is also the simplest way to measure whether exercise is excessive. If you are out of breath during exercise, you have exercised too much. No matter what exercise you do, especially middle-aged and elderly people, it is suitable for doing full-body activities for physical exercise. For example, swimming, running, walking, these can be, gymnastics can also be. But it must reach a certain amount. There is a saying of "three, seven". The so-called "three" means that the time for each exercise should be more than 30 minutes. If the exercise time is less than 20 minutes and the intensity is not too great, I am afraid that at most, I will consume a little blood sugar in the blood circulation, which will neither lose weight nor consume excess fat accumulated in the body. It should be noted that it is definitely not good to exercise immediately after a full meal, because your blood is concentrated in your stomach to digest food after a meal.