Smoking

The reasons people use e-cigarettes are shifting, with fewer using them as a way to quit smoking, and more using them as to a way to boost their social image, a new study finds.

Keeping your heart healthy could also benefit your brain — a new study suggests that people who have risk factors for heart disease in middle age are also at increased risk for dementia.

A new study finds that certain markers for heart disease risk are higher in e-cigarette users than in nonusers.

When it comes to vices, James Bond may be known for martinis, but a new study finds that he's been quite the smoker as well.

A new report checks in on the progress the U.S. is making toward meeting its health goals for 2020.

A 6-year-old girl experienced severe nicotine poisoning after her parents accidentally gave her liquid nicotine instead of a pain reliever.

Smoking marijuana during pregnancy doesn't appear to increase the risk of preterm birth or other harmful birth outcomes, a new review study suggests.

Nearly 21 million Americans ages 12 and older had a substance use problem in 2015, according to a new federal estimate.

A California city has the highest rate of marijuana use in the country.

Researchers looked at whether using marijuana was linked to a host of health problems.

There are five key habits that researchers have definitively linked with better health and a longer life. But few people are doing them.

Can eating a healthier diet and exercising regularly prevent cancer?

With the recent increase in e-ciggs' popularity, evidence is beginning to emerge on what they do to people's health.

Before reaching for a cigarette, consider your baby's genes.

Nothing gets the internet talking like viral cat videos, and now a new anti-smoking ad has tapped into our love of funny cats for health education, a move that experts welcomed.

Like alcohol, rich foods and tobacco, too much sleep and sitting around are not good for you — especially if they occur together.

Smoking pot may increase risk for prediabetes.