He's been medicated in the past. That being said, I know it's a common belief that mental health medication and coping can make someone no longer creative, this is not based on real things. No one does what they want to do well while they are struggling with mental health problems. Medication doesn't strip people of their skills and abilities. Every creative person will struggle with ''writers block'' ''art block'' whatever you want to call it. There's real ways to get past it, and everyone deals with internal and external pressure in creative fields, like Pete Doctor talking about having a huge crisis of faith in his own work to the point he was sure Pixar was soon to fire him when he's easily more original and productive than any other major name writer/director/animator they've had. Everyone goes through this. But when you real look at a ''troubled artists'' you see the mental health problems got in the way of them being creative not the other way around. Van Gogh was MONTHS away from being a world renowned artist when he committed suicide. Why did he do it? Well I can't say exactly, but he was a man who spend years in mental hospitals, and couldn't paint while in there, maybe he could somewhat, but not like he wanted to. He produced an average of one painting a day for two years straight when he was out of the hospital. He was out because his symptoms were under control and he was free to leave. Not because he was struggling with mental health. And when his symptom were getting worse again after the two years he painted clearly 10+ hours a day, he very likely didn't want to go back to the hospital for who knows how many years? If being unhealthy made him an artistic genius all his famous work wouldn't have come while he was out of the hospital having few symptoms, he wouldn't have been painting when he was well, he would have gotten a job as a mailman or something. No healthy meant he could focus and work. Unhealthy meant he couldn't.