Researchers say psychedelics like ayahuasca, psilocybin, ketamine, ibogaine and 5-MeO-DMT prove so beneficial to professional athletes because they have the ability to heal. The sacrifice athletes of high-impact sports make to succeed goes beyond the personal and physical. Researchers have found that repeated head blows and concussions can have detrimental long-term effects on the brain—headaches, dizziness, forgetfulness, insomnia, anxiety, depression, aggression, and in some cases, the desire to kill oneself or others.