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"Hey, Li Shi is a doctor, I've been a little dizzy after running for the past two days, what's going on?" Zhang Qiang asked the doctor in front of him while rubbing his temples.
Zhang Qiang: For the sake of health, he always finds time to run at night. Recently, however, he has been feeling dizzy and tired after a run, which has made him feel very uneasy.
Li Shi is a doctor, and after listening to Zhang Qiang's description, he frowned slightly and began to seriously examine his symptoms. "Zhang Qiang, has the intensity of your running increased recently, and what is the running time and speed?"
"Oh yes, I've been training half-marathons lately, so I'm running more often and faster than before. Zhang Qiang said. "Did you know that although exercise is a great way to stay healthy, excessive exercise, especially high-intensity aerobic exercise, such as running fast for long periods of time, may actually increase certain health risks," says Dr. Li Shishi. "
"For example, running too hard causes the body to secrete a lot of free radicals, which attack the body's cells. When the vascular endothelium is damaged, it increases the chance of blood clot formation, which may lead to cerebral infarction. ”
"In addition, after strenuous exercise, blood pressure can temporarily rise, which may pose a significant risk to people with hidden cardiovascular problems. "
"In fact, people who exercise more than seven hours a week have a nearly three-fold increased risk of cardiovascular events compared to those who exercise moderately. "
Dr. Li Shishi continued: "And your symptoms, such as dizziness and fatigue, may be a sign of excessive exercise. I suggest that you can reduce the intensity and frequency of exercise appropriately and add some low-intensity activities, such as brisk walking, which can help you balance your body's needs and recovery. "
Zhang Qiang asked: "Then Li Shi is a doctor, can you tell us more about why free radicals are produced so much during strenuous exercise?"
Dr. Li Shishi explained: "When we exercise vigorously, the body will increase the consumption of oxygen in order to meet the demand for energy, and many by-products will be produced in the process, including free radicals. ”
"It's like a vehicle running at high speed produces more exhaust fumes. Therefore, proper exercise can 'clean' these exhaust gases, while excessive exercise may cause the body to 'smog', which can damage cells. "
"Li Shi is a doctor, so how many hours of exercise do you think is more appropriate?" Zhang Qiang asked. Dr. Li Shishi advised: "The key is to get enough exercise for the body, and at the same time not overdo it. In fact, proper exercise can improve cardiopulmonary function, enhance the elasticity of blood vessels, and reduce the risk of cardiovascular disease. "
However, everyone's physical condition is different, so this degree is still up to the individual. Especially in a job like yours, which is often manual labor, you should be more careful not to push your body too hard. "
Zhang Qiang nodded, feeling that he had a deeper understanding of sports and health. He began to think about how to adapt his exercise program to suit his body's needs.
"So, Li Shi is a doctor, is there any good method or indicator to detect whether I am adapting to the current exercise intensity?" Zhang Qiang asked.
Dr. Li Shishi said: "Actually, we can monitor your exercise adaptability through some simple physiological indicators. For example, heart rate recovery time. "
Dr. Li Shishi also added: "In addition to this, you can also pay attention to your fatigue level and sleep quality after exercise. Adjusting your exercise program and making sure you have enough rest days can help you avoid these problems. "
After listening to this, Zhang Qiang carefully wrote down these suggestions, and decided to pay more attention to his body's reaction in the following days and adjust the exercise intensity appropriately.
He felt very grateful for Dr. Li Shishi's patience and professionalism, and felt that he had a more comprehensive understanding of exercise and health.
What do you think about the relationship between running and cerebral infarction?