Occasional exposure of infants to secondhand smoke is generally not significantly harmful, but long-term exposure to secondhand smoke may cause respiratory diseases, central nervous system damage, cardiovascular damage, decreased immunity, and so on.
1. Respiratory system diseases: infants are most likely to damage the respiratory tract after passive inhalation of second-hand smoke, which will be manifested as dry throat, coughing, coughing up phlegm, etc. Pneumonia will occur when combined with infection.
2. Central nervous system damage: after inhaling second-hand smoke, the harmful substances in the smoke will cause damage to the central nervous system, causing dizziness and memory loss.
3. Cardiovascular damage: the harmful components of secondhand smoke enter the bloodstream and cause changes in blood pressure, heart rate, blood vessel function, etc., damaging the cardiovascular system and inducing cardiovascular disease.
4. Decreased immunity: infants in the environment of second-hand smoke for a long time will also cause damage to the body’s immune system, resulting in decreased immunity of infants.
Long-term exposure to second-hand smoke will also have other harmful effects on infants, parents should allow infants to avoid exposure to second-hand smoke, so as not to affect growth and development.