This Weekly Workout Plan Is Perfect For When You're Too Tired to Think

The next day in this workout plan is dedicated to cardio. Complete a 15- to 30-minute run on the treadmill or outside. Go at whatever pace you can maintain for the duration of the run. If you're new to running, try this 20-minute running interval workout.

If running isn't your thing, you can opt for another form of cardio, such as a cycling class or swimming.