20-Year Study of 1,000 Adults Reveals How Marijuana Alters DNA
8th May 2025
Marijuana has intrigued people for decades, especially as more places allow it for medical or recreational use. Many see it as a natural product with relaxing properties, yet scientists have been eager to uncover how it might alter the body in subtle ways.
Researchers tracked the cannabis habits of more than 1,000 U.S. adults over roughly two decades. The team included epidemiologist Lifang Hou from Northwestern University, who analyzed blood samples at two points to search for signs that cannabis use may shift genetic markers.