When people exercise on an empty stomach, the free fatty acids in the blood will increase significantly. If the source of fatty acid muscle activity is excessive, there will be "poisons" that damage the myocardium, causing arrhythmia and even sudden death. Therefore, before exercising on an empty stomach, you should drink a glass of milk or eat some cakes, which can reduce the risk of hypoglycemia.
On the contrary, exercise for half an hour after meals can effectively avoid the harm of fasting exercise. Don't exercise immediately after meals. It is more appropriate to exercise for half an hour after meals.
Extended data
Fasting classification
1. Under normal circumstances, the specific requirements of fasting in the laboratory are: the person who wants to have a physical examination should maintain his usual living habits, maintain a normal diet structure, make the food light, do not drink alcohol, coffee or strong tea, and have a good rest the night before blood drawing. After getting up the next morning, don't eat breakfast, drink less or no water, don't do morning exercises, and go to the hospital to wait for blood collection after your mood is stable. This kind of blood specimen is a good specimen to accurately reflect the condition.
As we all know, taking medicine can be divided into "fasting" and "satiety". Many drug instructions indicate "take before meals" or "take after meals". What is "before meals" and what is "after meals"?
"Take before meals" means that this medicine needs to be taken on an empty stomach, 65438+ 0 hour before meals or 2 hours after meals to facilitate absorption. If you just eat a lot of snacks before eating, then "before eating" at this time is not "fasting" or really "before eating". And "taking after meals" means taking medicine half an hour after a full meal, and using food to reduce the stimulation of drugs to the gastrointestinal tract or promote the absorption of drugs by the gastrointestinal tract. Similarly, if you just eat a lot of snacks before meals, you don't have to be dogmatic. You can't take medicine until after dinner, because you are "full" at this time.
Usually, you can't eat tomatoes and bananas on an empty stomach, which means four or five hours before each meal, that is, after the meal. Of course, if you eat a lot of snacks before meals, it is not an empty stomach.