[sidebar]Here are three reasons to wake up and walk: You’ll feel invigorated. An AM stroll gives you a natural energy boost. One study found that morning walkers were more likely to stay active all day long. Bonus: The extra activity didn’t increase their appetite. You’ll be a whiz at work. Regular exercise increases production of brain-derived neurotrophic factor (BDNF), a protein that boosts mental acuity. So schedule important meetings after your morning walk to score a mental advantage. You’ll stick with it. Crossing exercise off your to-do list first thing in the morning makes you more likely to work out before distractions that are out of your control, such as work and family responsibilities, get in the way. More from Prevention: 7 Steps To Loving Morning Workouts