To explain his lack of support for legalization, Joe Biden cited a line of reasoning at odds with federally approved science.
Big claims have been made about the infiltration of fentanyl into America's cocaine supply. So we got some hard data.
Should psychedelic scientists trip on the drugs they research?
The drug, esketamine, is a new kind of antidepressant for people who haven't responded to other treatments.
"It can generate a sense of detachment from the body and the self and, at higher doses, a full-blown dissociative experience."
This week in the Coping newsletter: Numbness as a very real symptom of depression, and what to do when you feel like withdrawing from friends.
Combining drugs is never a good idea, but that doesn't stop a lot of people from doing it.
The scientists used the DNA of Lonesome George, the last known Pinta Island tortoise.
A first responder told us everything that's most likely to go wrong.
Headlines in science you won't want to miss
Traditionally used as an anesthetic, ketamine is now being used to treat depression, OCD, and other mental health conditions.
Most people return to reality after five or six hours, while my brain gets flooded with epiphanies all night. I asked an expert why.