According to the survey, most people who do morning exercises are on an empty stomach. There is a saying that early exercise can be on an empty stomach. As long as you eat normally the night before dinner, the energy reserve in your muscles is enough to meet the needs of exercise. As for whether it is feasible to exercise early on an empty stomach, it depends on personal morning routine, exercise items, exercise time and exercise intensity, and cannot be generalized.

Studies have shown that pre-meal exercise can improve the metabolic rate in the body and reduce the storage of glycogen, making it difficult for carbohydrates to be converted into fat, which is conducive to weight loss. But it is not advisable to exercise on an empty stomach in the morning. Clinically, fasting exercise can reduce blood sugar in the body, causing headache, limb weakness and fainting.

Even if you want to exercise early on an empty stomach, the premise is that your body must be normal, free from cardiovascular and diabetic diseases, eat normally at dinner the next day, and drink a proper amount of water after getting up. Exercise duration should not be too long, and exercise intensity should not be too high.

Early morning is the high incidence of cardiovascular diseases (such as myocardial infarction, sudden cardiac death, etc.). If physical exercise, especially excessive exercise, increases myocardial oxygen consumption, it is easy to cause coronary artery spasm or thrombosis. Therefore, middle-aged and elderly people, especially patients with cardiovascular diseases, should be cautious about morning exercises.