Cannabis use linked to 37% higher stroke risk in massive study
A large-scale meta-analysis from the University of Cambridge links the use of cannabis, cocaine, and amphetamines to a significantly higher risk of stroke. The study, involving over 100 million participants, highlights that these substances pose risks even among younger populations.
Why it matters
This research provides critical public health data regarding the long-term cardiovascular consequences of recreational drug use.
Researchers at the University of Cambridge have found that cannabis, cocaine, and amphetamines are associated with a significantly greater risk of stroke, including among younger people. The findings come from an analysis that drew on data involving more than 100 million people.
Stroke remains one of the world's biggest health problems and ranks as the third leading cause of death and disability combined. Many of its major risk factors, however, can be changed through lifestyle choices, including diet, physical activity, and other behaviors.
Recreational drug use is also widespread. In 2024, 8.8% of adults between ages 16 and 59 in England and Wales, representing about 2.9 million people, reported using a legal or illegal recreational drug during the previous year. Recent US data indicate that more than half of people over age 12 have used substances such as cocaine, cannabis, and opiates at least once.
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