It's unclear whether or not they help people quit real cigarettes.
Fifty years ago, the U.S. surgeon general first declared that smoking tobacco causes lung cancer. Popular Science readers could have known that was coming.
A study of social smokers and addicts reveals a likely genetic culprit
Smoking doesn't kill, teach the controversy, and more quotes from the candidate
This is the first study to compare smoking marijuana and pills that contain the psychoactive chemical in the plant.
But scientists warn that the treatment does nothing to prevent cancer risks, and that it's thus far limited to mice who smoke
Medicine and sociology: More bad news about mama's butts.
The May 2015 issue is here
But does it help twelve-steppers stay sober?
A recently discovered group of air pollutants could explain why non-smokers suffer similar health problems to smokers
A new way to get sick and annoy passersby
Long before pipes and bowls, people in Central Asia burned cannabis plants in wooden bowls and inhaled the smoke.
Society has been fighting the plague of addictions without knowing how drugs, cigarettes, and alcohol hot-wire the brain's pleasure response. Now researchers may be closing in on a magic bullet.
Don't worry, it doesn't hurt!
The unfair science behind the M(J) Phelps suspension
Our editors scrounged up some truly bizarre facts.
Are nuclear disasters the new normal?
Reefer madness! Pot causes psychosis! Except maybe not.
The flu was clearly on our editors' minds, but they seemed to have left the more straightforward reporting to other outlets.
The EU makes its first ruling on the newly popular gadgets.
Obesity is booming, yet there are only two medications approved for long-term weight loss. Why is it so hard to make a diet pill that works? For one thing, evolution hates diets