1, go backwards. In parks, communities and squares, we can often see some middle-aged and elderly people walking backwards. Walking or running backwards can stimulate the muscles that don't exercise often and improve the balance ability of the human body. So many old people like to walk backwards when they do morning exercises. However, because the cardiovascular reserve capacity of the elderly is reduced, walking backwards or running will overwhelm the cardiovascular system. At the same time, it will turn the neck, which will lead to compression of the carotid artery, narrowing of the lumen, reduction of blood flow to the brain, hypoxia in the brain, and even sudden fainting when turning the neck. For the elderly, occasional retrogression will not harm their health, but it should not be carried out frequently.
2. Take a deep breath. Doing deep breathing exercises helps to relieve self-fatigue. However, in recent years, scientific research and clinical observation have found that patients with hypertension and coronary heart disease can induce cardiovascular and cerebrovascular contraction with excessive deep breathing, which is fatal. Accidents such as myocardial infarction and cerebral hemorrhage are directly or indirectly related to deep breathing. Therefore, it is suggested that patients with arteriosclerosis, especially hypertension and cardiovascular and cerebrovascular diseases should not take deep breathing exercise.
3. Drink salt water. Many people like to drink a glass of salt water after getting up in the morning, thinking it is very helpful for health. Physiological research believes that physiological activities such as breathing and sweating are still going on during sleep and consume a lot of water. When you get up in the morning, your blood is concentrated. Drinking salt water will aggravate hypertonic dehydration and make people feel dry. At the same time, early morning is the first peak of human blood pressure rise. Drinking salt water will make blood pressure rise even higher, which is not good for health.
The above is the relevant introduction of "What are the misunderstandings of health care", and I believe everyone will understand it after reading it. In daily life, because we know little about professional knowledge, we often do things that we think are good for our health, but we don't know that these methods are actually harmful to our health. Therefore, we need to pay more attention to some health-related common sense, avoid misunderstandings and find the right health-keeping methods.