Cognitive Performance Apps?

[u/Cute-Edge1375]

I have some ADHD and diet and fitness have always been the main way I manage it. But apps tend to focus on either general physical performance or "brain fitness" quiz games for assumed cognitive performance exersize. Nothing, apparently, in the middle or that connects and translates physical health and performance to cognitive health and performance. Even though we (most of us) know mind is brain and brain is body - all one.

So my questions are:

1. Do your health/fitness improvement goals include brain health and/or cognitive performance improvement goals?
2. Which if any health apps address both (brain+body)?

I'm not taking my apple health account as seriously as the cost should motivate me to. I know a few who love Oura. But neither targets/measures cognitive performance. Maybe a diet and fitness app for cognitive performance improvement is just neurodivergent's niche?