Discover the emerging science of psychedelic medicine in our live webinar with Clusterbusters and leading experts. Learn how psilocybin may treat debilitating cluster headaches and other neurological conditions. For people living with cluster headaches and other chronic neurological conditions, life can be defined by pain. Cluster headaches alone affect roughly 1 in 1,000 people globally and are often described as one of the most painful conditions known, earning the nickname “suicide headaches.” Despite widely available treatments, not all patients respond.