This is what the CEO of Target Brian Cornell does:

Sleep and eat “just like you would if you’re playing in the U.S. Open or the Super Bowl.”

But it wasn’t always that way – he used to get too little sleep, drink coffee as a substitute for eating and not prioritizing after-work exercise and relaxation.

These habits can be detrimental to careers and health as outlined in a 2016 study.

The way I take this is defer to your brain which controls your drive and motivation, fix poor sleep and don’t forget me-time and improve diet so that the result is the mind of a well-trained athlete and the improved health to go with it.