1, Reasons for moistening the lungs in autumn: Lung fire is strong, mainly because dryness is a typical climate in autumn, the humidity in the air is reduced, and the humidity of water is insufficient, because the air is very dry.

2. Extended answer:

(1) The nasal cavity, lips and mouth will also feel very dry due to lack of air moisture. The dryness of the mouth will also affect the gastrointestinal tract and make the stool dry.

(2) Autumn dryness not only affects the respiratory system, but also causes dry and itchy skin.

3. Lung-nourishing fruit: pear, which is cool and sweet, has the functions of moistening lung and resolving phlegm, relieving cough, clearing heat and detoxifying. It can be eaten raw, juiced and stewed, and has a good auxiliary effect on lung heat cough, senile cough, bronchitis and other diseases.