I’m hanging out with a couple of friends on their apartment balcony when one pal hands me a cigarette. Now, this may not seem like a big deal to some, especially for seasoned puffers, but I smoke only ...

Teenagers who start using cannabis early and frequently are more likely to face serious health consequences later in life.

Regina Barber and Emily Kwong of NPR's Short Wave talk about the brain benefits of quitting cigarettes, language development in premature babies, and a mysterious imprint in a Chicago sidewalk.