Does exercise boost energy levels?

Exercise increases energy levels in several ways. It adds muscle, spurs your body to produce more energy producing chemicals in your cells, and boosts energy-promoting neurotransmitters in the brain, which provide that mental lift you feel after a workout. It can be a challenge to exercise when energy levels are already low, so start small. Some research suggests that just 20 minutes of low-to-moderate aerobic activity, three days a week, can help energize you. It doesn’t really matter what kind of exercise you do. Studies have found that non-aerobic exercises like strength training can have the same energy- boosting effect as aerobic activities.