1. E-cigarette addiction: E-cigarettes also contain a lot of nicotine, and the nicotine content in e-cigarettes is higher than that in ordinary cigarettes. When smoking, this nicotine component will be inhaled from the nasal cavity, and then enter the brain, prompting the brain to produce dopamine components, which will bring pleasure to smokers and lead to the symptoms of e-cigarette addiction.
2. Cardiovascular disease: Electronic cigarette heats liquid nicotine electronically, so that liquid nicotine volatilizes into the body. Nicotine heating is still harmful to the body. Nicotine diffuses to the whole body through lung mucosa and oral mucosa. After entering the brain, nicotine can mimic the role of central neurotransmitter acetylcholine and combine with nicotine receptors on the surface of many neurons. It can release more dopamine by activating related nerves. Because the effects of dopamine, serotonin and norepinephrine are strengthened, blood vessels can contract blood vessels rapidly, which increases blood pressure and exerts obvious pressure on endothelial cells and surfaces of the heart, especially the cardiovascular system, so smoking e-cigarettes is the most harmful.
3. Lung diseases: The main components of e-cigarettes are nicotine, plant glycerin and propylene glycol. Most e-cigarettes have a high nicotine content. After the human body ingests nicotine, it will gradually destroy some structures in the lungs. Bronchial epithelial cells and bronchial epithelial cells are destroyed, which makes lung mucus cells secrete a lot of mucus, forming diseases such as chronic bronchitis and chronic pharyngitis. Smoke contains many chemicals, such as glycidyl, vitamin E, acetate, ultrafine particles, nicotine and carcinogens. If inhaled into the lungs for a long time, it will cause damage to the lungs, and the role of lung cells is mainly to repair DNA damage and prevent cancer, so low lung cell level will lead to DNA damage, thus increasing the incidence of lung cancer.