Unending Heat, Immunity, Autonomic Nervous System Abnormalities
Aug 24, 2025
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Generally, the appropriate temperature for a good night's sleep is known to be 18-20℃, and when the night temperature rises above 25℃, the thermoregulatory center continues to be activated, hindering deep sleep. If you don't sleep properly, fatigue accumulates, resulting in poor concentration and weakened immunity, which can lead to a vicious cycle that adversely affects the autonomic nervous system.
Yoo Seong-ho, director of the KH Korea Health Care Association's Health Examination Center (East Seoul), said, `Late summer is a time when our bodies are exhausted from the heat and need to recover, and if we do not properly relieve our fatigue, our immune system is likely to collapse"In particular, as there are concerns about the recent spread of COVID-19 or various infectious diseases, it is recommended not to ignore any unusual fatigue or abnormal symptoms, but to visit a medical institution for accurate diagnosis if necessary."
◇ It can affect autonomic nervous system abnormalities, cardiovascular, gastrointestinal, urinary system, etc
If the air conditioner is excessively used during the summer and exposed to an environment with a large indoor and outdoor temperature difference for a long time, the body's autonomic nervous system function can be deteriorated and immunity can be weakened. In addition, fatigue, which has been accumulated because of tropical nights, cannot sleep well at night, is also a major cause of decreased immunity. If you skip meals or eat cold food frequently due to lack of appetite due to the heat, your stomach function may weaken and nutritional imbalance may lead to lower immunity. In addition, you may suffer from chronic fatigue and lethargy as you sweat a lot and consume energy and electrolytes in your body.
As such, tired bodies throughout the summer become more vulnerable to late heat, and the body's immune cell activity decreases, making it easier to contract various diseases. This can lead to problems with the autonomic nervous system that maintains homeostasis in our body. Since the autonomic nervous system is distributed in all parts and organs of the body, various symptoms appear when an abnormality occurs.
If an autonomic nervous system abnormality occurs, it affects the cardiovascular system, which can cause dizziness, orthostatic fainting, and severe blood pressure fluctuations. Gastrointestinal abnormalities are also major symptoms, such as indigestion, abdominal bloating, and constipation, and diarrhea and constipation without abdominal pain at night may be repeated periodically. Urinary reproductive symptoms such as urination disorders, urinary incontinence, and impotence that are difficult to hold urine or poor urination may also appear. In addition, it can lead to decreased sweat secretion, dry mouth, and dry eyes.
◇If you have unknown fatigue, headache, indigestion, etc., you need a checkup
If autonomic nerve abnormalities are suspected, symptom relief treatment should be performed in parallel while finding and treating the causative disease. In addition, strengthening lower body strength and improving blood circulation through regular exercise helps relieve symptoms and is good for activating immune cells. However, care should be taken not to worsen symptoms due to sudden and excessive exercise intensity.
Sleeping well is also essential for strengthening immunity. Taking a lukewarm shower two hours before going to bed, refraining from using smartphones, and creating a cool and dark bedroom environment can help improve sleep quality. A balanced diet is also important, and it is good to eat enough vitamins, minerals, and protein-rich seasonal vegetables and fruits. Vitamin C and zinc, in particular, are effective in boosting immunity.
If fatigue persists or abnormal signals appear in the body, such as headaches and indigestion of unknown causes, it is better to visit a medical institution immediately to check your physical condition. If an autonomic nerve abnormality is suspected through listening to an existing medical history or a physical examination, it is necessary to take an autonomic nerve test that measures blood pressure, heart rate response, and sweat secretion.
Yoo Seong-ho, director of the KH Korea Health Care Association's Health Examination Center (East Seoul), said, `Especially if you have chronic diseases such as high blood pressure and diabetes or have a family history of cardiovascular diseases, you should check your health condition thoroughly through cardiovascular detailed examination as well as basic medical examination," he stressed.
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This article was translated by Naver AI translator.
