Exercise classes (like kickboxing) The benefits of walking (not running) are very widely touted. In a 30 minute walk, you can burn between 150 to 300 calories, depending on your weight and fitness levels. The American Heart Association lays out the benefits quite well: Lower risk of heart disease, stroke, type 2 diabetes, high blood pressure, dementia and Alzheimer’s, several types of cancer, and some complications associated with pregnancy Better sleep, including improvements in insomnia and obstructive sleep apnea Improved cognition including memory, attention, and processing speed Less weight gain, obesity, and related chronic health conditions Better bone health and balance, with less risk of injury from falls