Retreat
Regressing or reversing can stimulate the muscles that are not active and improve the balance of the human body. Therefore, many elderly people like to regress in the morning exercise. As the elderly's cardiovascular reserve capacity is reduced, going backwards or running will overwhelm the cardiovascular system. At the same time, the neck will be turned, resulting in compression of the carotid artery, narrowing of the lumen, reduction of blood flow, reduction of blood supply to the brain, lack of oxygen in the brain, and even fainting when the neck is turned.
For the elderly, occasionally taking a step back will not hinder health, but it should not be done frequently.
Take a deep breath
In recent years, scientific research and clinical observations have found that patients with hypertension and coronary heart disease, excessive deep breathing can induce cardiovascular and cerebral vasoconstriction, a fatal risk, myocardial infarction, cerebral hemorrhage and other accidents are directly or indirectly related to deep breathing.
Therefore, experts suggest that it is best not to take deep breathing exercises for patients who have developed arteriosclerosis, especially high blood pressure and cardiovascular and cerebrovascular diseases.
Drinking salt water
Physiological studies suggest that physiological activities such as breathing during breathing and perspiration are still ongoing and consume a lot of water. When getting up in the morning, the blood is concentrated. Drinking salt water will increase the hypertonic dehydration, which makes people feel dry. At the same time, the morning is the first peak of the body's blood pressure, drinking salt water will raise blood pressure higher, which is not good for health.
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