Forget counting sheep and warm bubble baths. For millions of people who have problems falling and staying asleep, cannabis has become an increasingly popular sleep aid. But the evidence that the drug can help is limited.
“The hype surrounding cannabis has definitely outpaced the science behind it,” says Karim Ladha at the University of Toronto in Canada.
For instance, in a 2022 survey of more than 27,000 adults living in the US and Canada, scientists found that 46 per cent of respondents…