Stephen Lankenau has spent years studying how people use cannabis in everyday life. As director of Drexel University’s ...

A new National Sleep Foundation-funded survey found that nearly 10% of adults use it to help them sleep. But researchers ...

There are two stories behind why people start using cannabis: for fun, or to ease the mind. A new paper from King’s College London, published in BMJ Mental Health, says those two starting points are ...

“I would not feel so alone,” sang Bob Dylan back in 1966, “everybody must get stoned.” Millions of individuals have obliged: cannabis is now far and away the world’s favorite illicit drug, with ...

Teens who use cannabis may face a substantially greater risk of developing serious mental health conditions, including psychotic and bipolar disorders, according to a study of more than 463,000 ...

Teenagers already at clinical high risk for psychosis performed worse on standard cognitive tests when they used both ...

Forbes contributors publish independent expert analyses and insights. Dario Sabaghi covers the cannabis industry with a focus on Europe. A new large-scale study has found that teens using cannabis ...

Teens who start using cannabis show slower gains in memory, attention and thinking skills over time compared to non-users. THC exposure was linked to worse memory over time, highlighting potential ...

Using marijuana just once or twice a month was associated with worse school performance and emotional distress for teens, according to a large national study of adolescents led by Ryan Sultán, an ...