First of all, if you don't have a history of heart-related diseases, diabetes or hypoglycemia, and is young, early morning fasting exercise is certainly very good, because the study shows that the morning fasting exercise can be more than after breakfast exercise to consume nearly 20% more fat, this is why? You after a night of consumption, the stomach and intestines fasting time can reach 10 to 12 hours, this time to exercise, then, the body's fat is more likely to be converted to energy consumption, blood lipid levels will also be greater, so if you want to lose weight is best to breakfast before morning exercise, that is to say, fasting exercise is more effective, but you must pay attention to the following points.
First, drink a large glass of warm water before running. Because after a night's sleep, the human body loses more water. When people sleep, the skin, respiratory tract to emit about 20 to 35 grams of water per hour, coupled with the discharge of urine, the body will be in a relatively dehydrated state. If you do not have the habit of drinking water early in the morning, it will make the blood more viscous, slow flow rate, easy to form blood clots, resulting in a significant reduction in blood volume, chest tightness, palpitations, dizziness and other discomforts, and even cause myocardial infarction. In order to be healthy, we get up as soon as possible after drinking a large glass of warm water, when the intestinal mucosa can quickly absorb water into the blood circulation, effectively increase blood volume, dilute blood, reduce blood viscosity, promote blood circulation, thereby preventing angina pectoris, myocardial infarction, cerebral hemorrhage, cerebral thrombosis and other diseases.
And, after drinking water, you should run 20 minutes after drinking water. Running on an empty stomach for a long period of time may lead to the emergence of "forked" and gastric diseases and other diseases, but also help the digestive tract metabolite removal, accelerate the discharge of toxins in the body.
Secondly, it is not advisable to exercise on an empty stomach. The body's stored energy can only guarantee 90 minutes to two hours of exercise, and should not be much intensity. If the fitness distance is relatively long, you can first drink a small cup of sugar water or eat a little less heart food. If you feel uncomfortable in the exercise, you should immediately stop the exercise and replenish some energy.
Third, to be clear, whether or not the morning exercise, breakfast must be eaten, just when to eat have to pay attention. People in the morning fasting, the gallbladder bile after a night of about 12 hours of storage, so that the gallbladder is in a state of filling, the pressure is higher, and the saturation of cholesterol in the bile is higher. In the case of normal breakfast, due to the contraction of the gallbladder, so that cholesterol with the discharge of bile, while food to stimulate the secretion of bile, resulting in the gallbladder residual bile in the cholesterol saturation is reduced, so that the stone is not easy to form. If you don't eat breakfast, due to fasting time is too long, the gallbladder is in a state of filling for a long time, it is easy to induce chronic cholecystitis, and the gallbladder bile storage time is too long, resulting in cholesterol in the bile is oversaturated, which in turn causes cholesterol deposition, and the gradual formation of stones.
Of course, if you don't meet the assumptions I made at the beginning, have a history of heart-related disease, diabetes or hypoglycemia, or are an older person, you can properly replenish your energy before the morning exercise, and moderate intake of carbohydrate-rich foods, such as bread, milk, honey, bananas and so on. If there is no energy as a guarantee, do not carry out strenuous activities in the morning exercise, and control the amount of exercises to avoid a large amount of energy consumption. Of course, excessive intake of food is also unfavorable. Middle-aged and elderly people's digestive system function degenerates, gastrointestinal peristalsis slows down, food digestion in the gastrointestinal tract slows down and is easy to stagnate. At the same time, running after a full meal will increase the burden on the stomach, so that intestinal peristalsis increases, the abdomen has a painful feeling, and the occurrence of pancreatitis, appendicitis has a certain role in inducing.