So, we're thinking how does drugs affects our circulatory and respiratory system. The use of drugs can result in a number of respiratory issues. For example, smoking cigarettes has been shown to cause bronchitis, emphysema, and lung cancer, while chemical analyses comparing the profiles of electronic and traditional cigarettes have suggested that e-cigarettes have a lower carcinogenic profile. Toxins, carcinogens, and metal particles have been detected in the liquids and aerosols of e-cigarettes. It's unclear what risk they represent to the lungs with regular usage, although major lung diseases and deaths have been related to the additive vitamin e acetate. Smoking crack cocaine can cause lung damage and severe respiratory problems. Marijuana smoke can also cause respiratory problems such as chronic bronchitis. Some medicines, such as opioids, might impede breathing or make asthma symptoms worse by blocking air from entering the lungs. Drug misuse from injected medications brings its own set of issues due to the method of use the danger of these effects increases with prolonged use, although some symptoms such as heart attacks can occur even in first-time users. Drugs and alcohol abuse put a strain on your heart. Research shows that substance abuse can double your chances of developing conditions like heart disease that put you at higher risk for heart failure. a study of substance abusers aged 15-35 shows that abusing drugs like tobacco, marijuana, cocaine, and prescribed psychotropic medications put them at higher risk for sudden cardiac death. So you see you should stop consuming and abusing drugs because it is very bad for your health and unfortunately die so live healthy.