People who use marijuana for many years may lose their brain's "natural" responses to rewards, a new study suggests.
People who are workaholics may be more likely to have symptoms of certain mental health conditions, a new study suggests.
"Cannavaping" — using e-cigarettes for vaping cannabis — may be a better way to use medical marijuana, according to a small, early study.
The hallucinogen psilocybin may help people with depression who haven't been helped by other treatments, a new study finds.
Taking a popular painkiller may be linked to decreased ability to empathize with others' suffering, a new study suggests.
Bad date? Embarrassing conversation? New research finds a way to forget what we'd rather not remember.
Healthy, youthful skin can be restored to older faces with a new "second skin" invention, researchers say.
Cultural pressures and daily responsibilities may override our biological clocks and dictate when we go to sleep, a new study suggests.
LSD can have a bizarre effect called "ego dissolution." Now, scientists say they have discovered how it works.
A tiny number of people in the world seemed to have escaped their genetic destiny. Scientists want to study how they did it.
Researchers looked at the Zika virus under a resolution of a few angstroms (a ten-billionth of a meter). Here's what they saw.
Is there a vaccine against Zika? And how does it spread? Many in the U.S. don't know, a new poll finds.
For people with prediabetes, swapping out some of the meat and cheese in your diet for some vegetable oils or nuts could help prevent diabetes from developing, according to a small new study.
People born in the fall may have a higher risk of allergies, and now researchers say they have found one reason why.
The most severe type of heart attack has been striking people who are younger, and more obese, a new study finds.
A stick-on patch could tracks blood sugar levels and even deliver a drug if they get too high, according to a new study.
Young adults who have severe mental health disorders that involve psychosis, or a break with reality, may benefit from exercising, a new, small study suggests.
One in 100 women who become infected with the Zika virus during the first trimester of pregnancy will give birth to a child with microcephaly, a new estimate says.
A rare and potentially life-threatening liver infection developed in a Pennsylvania man after a routine dental exam, a new report says.