Cold air causes the airways to constrict, known as bronchoconstriction. When bronchoconstriction occurs, the airways narrow, allowing less air to pass in and out of the bronchial tubes.
Bronchoconstriction is especially troublesome for people who have asthma or lung disease. In asthmatics, cold air may trigger an asthma attack. In people suffering from a lung disease, cold air may cause respiratory distress.
Do you have a high-pitched whistle when breathing?
How often do you use your inhaler?
Do you find it hard to breath after exercise or other physical activities?