Long-term cannabis use, especially when started young, may carry risks involving dependence, mental health and cognition even ...

Stephen Lankenau has spent years studying how people use cannabis in everyday life. As director of Drexel University’s Medical Cannabis Research Center, he has watched legalization spread, products ...

Cannabis, commonly known as marijuana, is a plant that contains psychoactive compounds that can temporarily alter people's ...

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

The ICC ban on Mohammad Nawaz has renewed questions about cannabis testing. A psychiatrist explains why THC can remain in the ...

Researchers say better education on cannabis compounds could reduce consumers turning to high-potency tetrahydrocannabinol, ...

The ongoing legalization of cannabis in the United States has elicited cheers, boos and a host of questions. How much is safe ...

Over the past 25 years, I have treated thousands of medical cannabis patients with extremely few ill effects, one doctor ...

A cannabis high can last up to 10 hours, depending on the amount you ingest, how you consume it, the THC content, your body weight and metabolism, whether you’ve eaten, and your tolerance level.

There is little official guidance on using cannabis after surgery. Research on the effects of cannabis on surgery, anesthesia, and surgical recovery lags behind its use. For this reason, most surgeons ...