Most people think the health risks of weed stop at the brain and heart. In reality, cannabis affects far more. Studies now link it not only to dementia, psychosis, and cardiovascular deaths but also to changes in the very way genes function. Researchers warn that these genetic effects may have consequences that stretch across generations.

DNA Methylation and Weed Health Risks

Researchers at Northwestern University discovered that both cumulative and recent cannabis use change DNA methylation. This process adds methyl groups to DNA molecules, which alters how genes switch on or off. Although the genetic code itself stays the same, the body may function very differently as a result.
The team studied blood samples over 20 years. At the 15-year point, they found 22 DNA methylation markers linked to recent use and 31 tied to long-term use. By year 20, they reported 132 markers connected to recent use and 16 to cumulative use.

Health Risks of Weed May Span Generations

These changes carry serious consequences. Research connects cannabis-driven methylation to schizophrenia and substance use disorders. Even worse, people can pass these epigenetic changes to their children. The damage from smoking weed may not stop with the individual.

If cannabis use fuels mental illness in one generation, it could leave lasting effects on the next. The possibility that marijuana alters today’s health and tomorrow’s genetic expression shows how severe the weed health risks truly are.

A Call for Deeper Scientific Attention

Mounting evidence continues to expose marijuana’s dangers. This epigenetic perspective makes it clear that scientists must investigate the health risks of weed more deeply, along with the long-term consequences for individuals, families, and generations to come.

Source: The Drug Report