When Terry Matlen, a clinical social worker, was in her 40s, she was diagnosed with ADHD. “My entire life, there was something off,” Matlen said. This included significant anxiety as well as academic and behavioral issues, all of which started at a young age. Although Matlen was initially quite skeptical of her diagnosis, going so far as to seek out a second and third opinion, she eventually came to accept that she had ADHD.