The smoke from burning tobacco contains many harmful chemicals (such as lead, arsenic, and carbon monoxide) that can damage all body systems when breathed in. And this affects not only the smoker, but people who are around them.
One chemical, nicotine, does damage in a different way. It causes a person to become addicted within days of first using it. In fact, the nicotine in tobacco can be as addictive as cocaine or heroin. When a person starts to smoke, it’s hard to stop.
Health problems linked to smoking include:
- heart disease
- lung disease, such as pneumonia, asthma, and chronic obstructive pulmonary disease (COPD)
- stroke
- many types of cancer
- ulcers
- gum disease, which can lead to teeth falling out
- eye disease that can even lead to blindness
- diabetes
- joint problems, such as arthritis
- skin problems, like psoriasis and lots of wrinkles
- fertility problems (making it harder to get pregnant)
- problems during pregnancy that can affect the baby’s health
- weaker bones, leading to fractures
There are other things to think about when people start smoking at a young age. First, nicotine can harm the developing brain. It can be harder for kids who smoke to learn new things or to pay attention. They’re also likely to become addicted very quickly (even more so than adults). Nicotine is also linked to depression and anxiety in young smokers. And many studies show that young smokers are more likely to drink alcohol and to try marijuana, cocaine, heroin, or other drugs.
E-cigarettes and hookahs (water pipes) aren’t any better. They can be filled with nicotine or other harmful chemicals. Health experts report serious lung damage in people who vape, including some deaths. Even smokeless tobacco (for example, tobacco products that can be chewed, sucked on, or even inhaled into the nose) isn’t safe and can lead to many health problems, including heart disease and cancer.