You’ll hear some people say that you need to spend at least an hour in the sun, or you need to exercise for more than 30 minutes in order for these things to have some effect. They may be right, but not entirely. Thinking that way implies that alternatives are useless, which is not true.
In this case, a little is better than nothing. 30 minutes a day count. 15 count too. They won’t turn you into an athlete (something you probably don’t even want anyway), or fulfill your daily need for vitamin D, but these few minutes are priceless. They help you develop habits, even routines, sending your deeper self a powerfully convincing message: you are committed to moving your body, living more in tune with your natural predisposition to activity. And these short walks ease stress too, especially if you choose a pleasantly quiet street, or, even better, a park, a beach, or any natural environment where you can clear your worries for a while, and get back in tune with that mysterious force that keeps all life in balance.