shortness

Due to the shortness of the winter days in northern countries, people often feel more tired.

(Chinese) 由于北方国家冬季白昼短，人们经常感到更加疲劳。

His shortness of breath after climbing the stairs indicated that he was not in good physical shape.

(Chinese) 他在爬楼梯后感到气短，这表明他的身体状况不太好。