Secondhand smoke can cause several kinds of damage to the body: lung damage, gastrointestinal irritation, affecting fertility and so on.
1. Lung damage: secondhand smoke contains a lot of nicotine, tar, carbon monoxide and other substances. When inhaled, it can irritate the respiratory tract and lungs, causing symptoms such as chest tightness and shortness of breath. Long-term inhalation of second-hand smoke can cause breathing difficulties and even lead to lung cancer.
2. Stimulate stomach and intestines: nicotine in second-hand smoke will stimulate the gastric mucosa after entering the human body, causing atrophy of the gastric mucosa, ischemia, etc., and increasing the secretion of gastric acid, which will induce superficial gastritis and other gastric diseases. After long-term inhalation of second-hand smoke, it will induce gastric ulcer and other diseases.
3. Impact on fertility: Long-term inhalation of second-hand smoke can affect the sperm vitality of men. Women who inhale secondhand smoke can induce fetal malformation. Therefore, couples trying to prepare for pregnancy should avoid inhaling second-hand smoke, so as not to affect the quality of fertility.
There are other harmful effects of secondhand smoke on the human body and they are very harmful, so it is recommended to avoid inhaling secondhand smoke as much as possible.