is smoking 1 cigarette bad for you Even occasional isn't risk-free. Smoking just a few cigarettes — even socially — can increase the risk of heart disease, damage blood vessels, and trigger inflammation in the body. Unlike some how harmful is smoking one

Further side effects of inhaling second-hand cigar smoke include dizziness, lightheadedness, nausea, headache, and passing out

For all smokers, CO breath levels measured in the morning exceeded 6 ppm

The most common withdrawal symptoms include intense craving for nicotine, sweating, irritability, headaches, anxiety, insomnia, depression, and weight gain

Therefore, experts recommend screening for people who are age 50 or older, even if the person does not have additional risk factors

According to the Center for Disease Control (CDC), 40 million US adults and 4.7 US middle and high schoolers use tobacco products, such as cigarettes, cigars and chewing tobacco