For the past couple of Sundays, I’ve been going out for a walk at 6:30 a.m. for about an hour, and they definitely make me happier. At first, I was just doing it to move more on Sundays since I don’t work and usually spend the day on the computer, but it turned out to be a great decision. I really recommend it. But one thing — just you and your mind, no music, no phone.