Temperature Control - The recommended air conditioning temperature is between 22 to 26 degrees Celsius, with younger individuals advised to set it at 22 or 23 degrees, while older individuals should set it at 26 or 27 degrees to avoid sudden closure of pores and protect Yang energy [2] - Air conditioning vents should not blow directly on the body, especially on sensitive areas like the neck, back, and knees, to prevent obstruction of Yang energy [2] Humidity Management - The optimal humidity level for human survival is between 30% to 60%, and high humidity can lead to health issues, particularly in the elderly, such as heart problems and chest tightness [3] - Controlling both temperature and humidity is crucial for preventing air conditioning-related illnesses [3] Ventilation Importance - It is recommended to ventilate spaces for 2 to 3 hours daily when using air conditioning, especially in central air-conditioned environments, to reduce the risk of infectious diseases [2] - Keeping windows slightly open at night can facilitate air circulation, reducing indoor carbon dioxide and bacteria accumulation [2]