Persistent optimism is a quality that many with ADHD develop, because it helps them get through, and recover from, the many setbacks they experience when ADHD symptoms get in their way. Insomuch as it helps one dust off the scratches and keep going in life, it’s a real benefit...But optimism has its dark side, as well. As a rosy picture of the future, optimism can allow you to remain blissfully ignorant of what’s actually going on around you. This can really cause problems.