Each organ of the human body has its own detoxification time, and the lungs detoxify at around 3-5 am. The lungs are the main organ of the human body for gas exchange, through which the human body inhales oxygen from nature and exhales carbon dioxide to ensure that the body’s metabolism is carried out normally. Bacteria, viruses, dust and other harmful substances floating in the air can enter the lungs with the body’s breathing and stay in the lungs, so the lungs are one of the organs where toxins are most likely to accumulate. Around 3-5 a.m. is the time for lung detoxification, and if you are a coughing patient, your symptoms will be aggravated to promote the discharge of lung accumulation. If a violent cough causes inflammation, you should use medication to reduce inflammation under the guidance of a doctor and not self-medication. You should pay attention to protecting your lungs in your daily life by quitting smoking and staying away from second-hand smoke, wearing a mask when you go out, not overindulging in spicy foods so that they do not harm your lungs, and doing moderate exercise to ensure adequate lung capacity.