Daniel Carcillo wanted two things in life: to play hockey and to be a father. By 30, he was a two-time Stanley Cup winner. By age 31, he was suicidal. After seven diagnosed concussions, Carcillo tells CNN that he was suffering from "dementia-like" symptoms, along with depression, anxiety and headaches. Carcillo says he also suffered from insomnia and disrupted sleep. He spent over $500,000 on prescription medications and treatments at stroke rehabilitation centers, brain centers, and concussion centers, as well as holistic therapies. Then in a "last-ditch effort" to try and alleviate his symptoms, he says he took a dose of psilocybin the main psychoactive ingredient in magic mushrooms " in Denver, which became the first US city to decriminalize hallucinogenic mushrooms. "And I woke up the next day and I describe it as feeling the way I should," said Carcillo. "I felt like, for the first time in a very, very long time, I had a zest for life. All I wanted to do was get on FaceTime and call my wife and call my kids and get back home." Carcillo isn't the only athlete " former or current " openly talking about using psychedelics to treat various conditions. In 2022, residents in Colorado joined Oregon in voting to legalize psilocybin. Small clinical trials have shown that one or two doses of psilocybin, given in a therapeutic setting, can make dramatic and long-lasting changes in people suffering from treatment-resistant major depressive disorder.