Long-Term Cannabis Use Linked to Dementia Risk Factors

Long-term cannabis use is linked to hippocampal atrophy and poorer cognitive function in midlife — known risk factors for dementia. A large prospective, longitudinal study showed long-term cannabis users had an intelligence quotient (IQ) decline from age 18 to midlife (mean 5.5 IQ points), poorer learning and processing speed compared to childhood, and self-reported memory … Read more