Legs are the engines that drive the body's physical power. How high we jump, how well we walk, how much we can stand up, how hard we punch, how tired we get, are all governed by the strength of our legs. Strong legs make everything easier. The body feels lighter. We have more stamina. We can lift more, carry more, throw things further away. The Better Legs Challenge helps you develop stronger legs, gradually, steadily, over one month.