Question
In winter, people feel breathless in hilly areas. Why?
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Answer
At higher altitudes, the air pressure is lower. This means there are fewer oxygen molecules in each breath you take compared to what you'd get at sea level.Cold air can irritate your lungs and airways, causing them to constrict. This makes it harder to breathe deeply and get enough oxygen.So, when people are in hilly areas during winter, the combination of less oxygen in the air and the constricting effect of cold air on their lungs can lead to feelings of breathlessness.
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