Proctor & Gamble CEO A. G. Lafley, from an article on how he paces himself through the day:
I learned this in a program called the Corporate Athlete that we put on for P&G managers. I did the two-day program, where I also learned to change the way I eat. I used to eat virtually nothing for breakfast. Now I have a V-8 juice, half a bagel, and a cup of yogurt. And I eat five or six times a day. It’s about managing your glycemic level. You don’t want to boom and bust.
From a slideshow on how several personalities – from a Google VP to a fashion designer – manage their work day.