Adults who sit less and do any amount of moderate-to-vigorous physical activity gain some health benefits. Only a few lifestyle choices have as large an impact on your health as physical activity. Everyone can experience the health benefits of physical activity – age, abilities, ethnicity, shape, or size do not matter. Both eating patterns and physical activity routines play a critical role in weight management. You gain weight when you consume more calories through eating and drinking than the amount of calories you burn, including those burned during physical activity.