Smoking and drinking make for quite the combo. Here's why:
The same brain hormone affects feelings and behaviors in both chimps and humans, causing humans and chimps to share a variety of traits.
Is it really possible to be a chocolate addict in the same way that someone might be addicted to drugs?
How do steroids work, and what makes them so dangerous? Find out on this Moment of Science.
When it comes to trying to quit smoking, there's more to it than willpower. Learn about the role alcohol plays with smoking, on this Moment of Science.