Smoking, has been clearly identified as a bad habit that jeopardizes public health. The relationship between tobacco and cardiovascular disease has been well established that smoking is one of the independent risk factors for coronary heart disease, and that the risk of cardiovascular disease increases exponentially as long as smoking occurs. However, at present, people tend to focus on the smoking population, while those who live with the smoking population and are exposed to smoke passive smokers are often overlooked. Let’s talk about the cardiovascular risk of passive smokers today. Passive smokers are defined as non-smokers who are exposed to environmental tobacco smoke for more than 15 minutes at least one day a week. So when you think about it, most people are pretty much passive smokers. Passive smokers inhale “secondhand smoke,” or “puff smoke,” which contains twice as much nicotine and tar, five times as much carbon monoxide, and 50 times as much nitrosamines as the main smoke. Therefore, the degree of harm is even more serious for people who have been smoking “second-hand smoke” for a long time. According to statistics, in 2002, 11,000 people died of lung cancer due to passive smoking, and as many as 31,000 people died of coronary heart disease due to passive smoking. With the increase in the number of smokers, this figure will certainly have a more substantial increase. Passive smoking not only accelerates the process of atherosclerosis leading to coronary heart disease, but also affects its vasodilatory function leading to hypertension, and may also affect sympathetic and parasympathetic functions leading to cardiac arrhythmia. Epidemiologic studies have shown that a woman married to a man who smokes has a 20% increased risk of coronary heart disease and death, while a man married to a woman who smokes has a 30% increased risk of coronary heart disease. Smokers have significantly more arrhythmias than non-smokers, with sinus tachycardia, atrial pre-systole, atrial tachycardia, atrial fibrillation, and ventricular pre-systole predominating. Therefore, getting your partner to quit smoking is an important thing for the family. According to a survey in China, 43.9% and 55.8% of adolescents were exposed to passive smoking at home and in public places respectively, which is a very alarming figure. The rate of passive smoking among mainland Chinese residents is 47.04%, while the rates of passive smoking in homes, workplaces and public places are 73.03%, 14.72% and 25.90% respectively. These figures show that there is a huge population of “passive smokers” in China. Therefore, we advise those who smoke that smoking is not only “harmful” but also “harmful” to others, and every time you smoke, you may even expose your partner, children and friends to danger. So, for the sake of your and your family’s health, please quit smoking!