Walking for just 20 to 25 minutes a day can improve your health tremendously. Walking can provide you with a number of health benefits which include: keeping your heart healthy, keeping your muscles and joints moving, and maintaining a healthy weight. Cardio exercise like walking can also improve brain function and release endorphins into your system, which will help keep you happy, sharp, and feeling good. Walking is also a great way to relieve stress and blow off some steam after a long day at work. This simple exercise can also help fight off diseases like diabetes, cancer, and obesity.