Cressida
elderly After a full meal, food will be concentrated in the gastrointestinal tract waiting to be digested. However, the digestive system of the elderly is not as good as that of young people and is relatively weak. In order to better digest the food in the body, the body's blood will automatically "support" the gastrointestinal tract, and the blood supply to the brain will be relatively reduced, resulting in dizziness, drowsiness, and fatigue after meals. In addition, due to the weak heart function of the elderly, changes in blood circulation after a full meal can easily lead to insufficient blood supply to the heart, leading to heart rate accelerate. Normally, this state lasts for about half an hour and then returns to normal. Therefore, in order to avoid hypotension symptoms that may occur after meals, the elderly should not overeat when eating, so as not to increase the burden on the heart and gastrointestinal tract and affect the normal digestion of the gastrointestinal tract. In order to ensure the blood supply to important organs such as the heart and brain, it is best not to move or stand up immediately after eating to avoid insufficient blood supply to the heart and brain blood vessels. A safer approach is for the elderly to sit in place for a while after eating, and then get up and walk around again; after half an hour, they can choose some soothing exercise, such as walking. exercise。
In fact, no matter the elderly or adults, exercise must have the right time and place. In fact, exercise requires appropriate exercise. When is the most appropriate time? What is the most appropriate location? In an interview, Professor He Yuxiu, an expert in exercise physiology, believed that fitness should be done after sunrise and before sunset, and should follow the principles of safety, moderation, and gradual progress.
In the past, many people thought that the earlier they got up to exercise, the better, so they often started exercising outdoors before dawn. After hearing that exercising too early is bad for the body, many people began to choose to exercise in the evening. In fact, both options are unscientific. “From 5 to 9, plants also need to breathe. At this time, the concentration of carbon dioxide in the surrounding environment is higher, which is harmful to the human body. healthy unfavorable. It is different after sunrise and before sunset. Plants can carry out photosynthesis. At this time, the oxygen concentration in the air is relatively high, which can meet the increase in human body's oxygen consumption during exercise. In addition, people nowadays tend to fall into misunderstandings about where to exercise. Due to limited space, some urban residents often choose to exercise beside the road or under an overpass. However, due to the heavy traffic flow, the large amount of exhaust gas emitted by cars seriously affects the air quality. This not only fails to achieve good fitness effects, but may also cause harm to the body.
