When we wake up in the dark morning hours to hit the gym, or run a weekly meeting so that it ends on time, or leave work with a clean desk, or remember to thank our colleagues for helping us, we’re displaying self-discipline—repeating positive actions consistently. When we deny ourselves that which we most enjoy—whether it’s stifling the urge to crack wise at someone else’s expense or saying no to a second helping of dessert—we’re displaying self-control.