Cannabis

New research indicates that roughly 5 percent of adults over 50 experience major depression. The study also links casual cannabis use to higher odds of depression, highlighting a growing need for proactive mental health screening.

New research indicates that adults who frequently consume cannabis have higher baseline cortisol levels immediately upon waking. Interestingly, this elevated morning stress hormone is closely linked to experiencing negative life consequences from cannabis use.

Young adults who experience psychosis after heavy cannabis use face slower recovery times if they also battle clinical depression and hopelessness. A recent two-year study highlights how these mood states create a dangerous cycle of persistent symptoms.

People who constantly worry about achieving happiness are more likely to use cannabis frequently and struggle to quit, according to new research. The same study explores how underlying bipolar risk relates to daily marijuana interference.

A new genetic study reveals that youth with a higher inherited risk for cannabis addiction show altered frontal brain structure. The variations appear even in teenagers who have never used marijuana, offering new insights into adolescent brain development.

College students with a higher risk for bipolar disorders report more life disruptions from cannabis use. Meanwhile, those who naturally experience higher levels of happiness tend to consume the drug less frequently.

As cannabis use grows among older adults, so do concerns about memory loss. However, a new study found that prior or occasional cannabis use is not associated with faster cognitive decline or a higher risk of dementia.

Despite its popularity, a new meta-analysis shows that CBD provides no meaningful benefit for patients with psychosis. Scientists note the treatment is well-tolerated but fails to outperform placebos in managing hallucinations, delusions, or cognitive issues.

A new study found that two minor cannabis compounds, CBN and THCV, were more effective at reducing voluntary alcohol drinking in rats than CBD, offering a potential new avenue for treating alcohol use disorder.

A new clinical trial mapped the sleeping brains of people with insomnia after they took a cannabis-based drug. The treatment altered deeper sleep stages and reduced dreaming, though participants experienced no cognitive impairment the morning after.

A study of over 500,000 Americans suggests that substances like PCP and cannabis consistently predict higher arrest rates. Conversely, psilocybin is associated with lower odds of offending, though these protective effects vary by race and age.

A massive new meta-analysis reveals a staggering overlap between cannabis addiction and depression. Researchers found that over 30% of people with Cannabis Use Disorder also suffer from Major Depressive Disorder, highlighting a critical need for dual-diagnosis mental health treatments.

Adolescents with a cannabis addiction are more likely to develop schizophrenia and depression than peers addicted to other substances. A recent study shows that this risk pattern reverses in adults, highlighting the vulnerability of the developing brain.

Does addiction always hijack your eyes? A surprising new Australian study found that heavy cannabis users don't actually pay more automatic attention to weed-related images than non-users, challenging long-held theories about how cannabis use disorder works.

A new review in Brain, Behavior, and Immunity challenges the idea that cannabis is strictly anti-inflammatory. Analyzing over 54,000 people, researchers found that regular cannabinoid use is linked to both pro- and anti-inflammatory immune responses.