Man is a generalist. No harm in that: he/she is remarkably adept at adapting and to enhance this process has created a batch of tools which allows him/her to perform to the highest levels.
What are the essential Tools of Excellence?
1: A Wall and A Ball
This isn't about exercise, nor fresh air. But it is about getting re-grounded. Overload, mixed and multiple priorities push the brain very easily into fight or flight mode.
Re-assure it with some simple, easy rhythm. Bounce after bounce. Meditative. Flow state. Breathing calming. Higher brain re-surfacing and knowing exactly what to do.
Get the ball now. Identify the wall. Start.