Every day you are busy.
Emails fill your inbox, some of them might even matter. Your todo list gets ticked off... or not. You attend meetings, deal with clients, chat with the boss, communicate with colleagues, deal with crises, handle problems, worry about tomorrow, think about yesterday, fret over a sick child ... and the list goes on.
If you are disciplined, you get to the gym or exercise at least 3 times a week and keep a wary eye on your diet, and make sure that you get enough...