Occasional exposure to second-hand smoke in infants and young children is generally not harmful, but long-term exposure to second-hand smoke may cause lung infections, brain damage, cardiovascular disease and so on.
1. Lung infections: After inhaling secondhand smoke, infants and young children will stimulate the bronchial mucosa, affecting the cilia’s ability to move, which will easily lead to bacteria and other pathogens that are not easy to expel, leading to lung infections.
2. Brain damage: when the harmful components of second-hand smoke reach the brain through blood circulation, it can damage neurons and cause cell necrosis, leading to abnormal memory and intellectual development.
3. Cardiovascular disease: Infants and young children inhale the harmful components of secondhand smoke, which can cause heart rate, blood pressure, blood volume abnormalities, etc., and long-term damage to the cardiovascular system can lead to cardiovascular disease.
Long-term exposure to secondhand smoke may also cause other harm to infants and young children. Parents should avoid exposing infants and young children to secondhand smoke so as not to affect the normal development of the body.