Nearly half of US adults who drink and use cannabis combine them at once; cannabis use disorder drives the trend, signaling urgent screening needs.

Athletes can feel the relief a substance gives them long before they can see what it costs. A composite case of cannabis use in a track athlete shows how to assess both.

Phase 3 psilocybin and LSD data plus new FDA guidance fuel a depression boom—yet clinics still wrestle with dosing time, cost, access.