DO DECADES of dope-smoking wreck cannabis users’ memory and concentration? Or is this just another anti-marijuana myth?
This long-running debate reopened this week with the publication of a US government-funded study which claims that smoking cannabis daily for 20 years or more impairs memory and attention. Its findings are contradicted by others that have revealed no long-term effects.
The latest research involved 102 cannabis smokers in Seattle, Farmington in Connecticut and Miami. Half had smoked for an average of 24 years. The other half, described as “short-term” users, had smoked for 10 years on average. Both groups reported smoking about…
