Pollution isn't the only reason. Exercise, money problems & job stress can also trigger asthma - Economic Times

Exposure to strong smells such as perfumes and odours can also trigger asthma in patients.

Increasing air pollution has given rise to asthma and a lot of respiratory-related problems in Indians. While pollution does play havoc with people's health, it isn't to be blamed alone. Various othe… [+3129 chars]

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