Are support groups really just a bunch of self-indulgent whiners getting together to cry about their problems, or is there actually any science backing the idea that they can improve well-being for people with specific backgrounds? If so, how can someone actually find a support group thats not just a feel-good facade, but a legitimate resource for people dealing with serious issues like anxiety, depression, or PTSD related to a traumatic event, and what criteria should they use to evaluate the effectiveness of the group? Can you get a legit support group for people who have experienced bike crashes or cycling-related trauma, or is that just a niche market waiting to be exploited by quacks and charlatans?