Cough is a very common disease, but we can find a phenomenon. Most of the time, cough doesn't show much in the daytime, but it keeps coughing when lying down at night. Why don't you cough so much from day to night?
Coughing at night, not coughing during the day
1. Lying and coughing worse
At night, when sleeping, because the body is lying on its back, the abdominal organs and the diaphragm (the border between the chest and abdomen) are raised, which will lead to the limitation of lung relaxation. As a result, cough symptoms are more severe at night than during the day.
2. Detoxify lungs at night
Coughing can clean up foreign bodies in throat and bronchus, and it is also a way of detoxification. And 3-5 a.m. is the best time for lung detoxification, so when there is a cough, many people cough the most severe time will be this time point.
3. Blood gas operation at night
1:00-3:00 p.m. is the time when the blood gas of the human body just runs to the lung meridian. At this time, the lung begins to self regulate and repair. It is normal to have a slight cough at this time. However, if there is a smoking situation, cough is more severe at night.
4. Vagal nerve excitation at night
The nerve around the bronchi of the lung has vagus nerve. At night, vagus nerve will be relatively active. The stimulation of vagus nerve will increase the secretion of trachea and bronchi of the lung and stimulate the contraction of smooth muscle of trachea and bronchi. Therefore, in case of cough, the cough at night is relatively serious.
5. Improper diet before going to bed
If you eat spicy food for a long time, it is easy to cause a cough due to a strong lung fire, especially if you overeat before going to bed at night, it may cause your stomach to not rest properly and lead to a cough due to food accumulation. If you cough at night because of indigestion, you can feel phlegm in your throat.
6. The air in the sleeping environment is dry and not circulating
At night, when sleeping, many people are used to close the doors and windows, the indoor air is turbid, the oxygen content is less, the waste is more, thus stimulating the lung to cough. Before going to bed, you should open the window to ventilate, and keep the seam in the window to facilitate the air circulation. In addition, it is recommended to dry water in the bedroom or put some green plants out of the window before going to bed, and water them frequently, which can effectively maintain the indoor humidity.
7. Allergic reaction of sleeping substance
In the daytime, there is little or no cough. When sleeping at night, there is more than cough. It should be considered that it is caused by respiratory tract allergy, which may be related to the quilt and pillow used. The allergen may be cotton wool, dust, mite, etc.
Treatment: cleaning quilt regularly and keeping indoor humidity can effectively alleviate allergy.
8. Disease factors
(1) laryngitis: in patients with laryngitis, inflammation, spasm and edema of the throat cause stenosis of the throat and increase of lung secretion at night, thus stimulating the throat, resulting in aggravation of cough at night.
(2) chronic bronchitis: in patients with chronic bronchitis, the secretion of lung organ and bronchus increases at night, and people can't discharge phlegm in time when they are asleep. When they change their sleeping position at night, the secretion stimulates the contraction of bronchus smooth muscle, resulting in severe cough at night.
(3) anaphylactic cough: when sleeping, the Yin Qi increases slowly, the Yang Qi is insufficient, and the lung itself is cold, then the external cold causes the internal cold, which is manifested as cough.
Tips: in this case, stop cough and treat disease first, treat physical disease first, and cough will be eliminated naturally.