2019-10-11T18:02:28-06:00A good warm-up before a workout dilates your blood vessels, ensuring that your muscles are well supplied with oxygen before you give them a vigorous workout. It also raises your muscles’ temperature for optimal flexibility and efficiency. Thus, by slowly raising your heart rate, the warm-up also helps minimize the stress on your heart. Warming up will help reduce your risk of injury and the aches and pains that come with exercise. The physiological reason to warm up is to...