Among the 7,000 or so different chemicals in cigarette smoke, more than 70 are known to be carcinogens. Most carcinogens promote cancer by damaging DNA and causing mutations. Illustration by Wenjing ...

Doctors explain why people relapse into smoking after years of abstinence, and how brain reward memory, stress, identity-linked habit loops and triggers can reignite cravings long after quitting.

Medically reviewed by Kashif J. Piracha, MD Key Takeaways You can get addicted to nicotine within days of starting to use it.

More than 1.6 million U.S. middle and high school students reported vaping in 2023, and nearly 90 percent used flavored vapes. But America’s youth vaping epidemic may be no accident. UC San Francisco ...

Vaping is the trendy new hobby that has turned into a concerning habit. Vaping is just as addictive as cigarettes, according to experts. That's because the number-one addictive component in ...