Can psychedelics soothe an overactive immune system? New meta-analysis investigates

Researchers included 61 studies in a systematic review and meta-analysis and found anti-inflammatory effects reported in 19 of 24 cell studies and 25 of 30 animal studies, with no effect in healthy mice. Only 3 of 10 human trials observed reduced inflammation, and 7 trials did not include patients with active inflammatory disease. Results were published in Brain, Behavior, and Immunity, DOI: 10.1016/j.bbi.2026.107033.