Hard is good, harder is better... for your health, your libido, your life. Such is the provocative premise behind Dr. Steven Lamm's The Hardness Factor, a groundbreaking book that will change the way men live and love. The Hardness Factor measures male health through the quality of an erection - perhaps the greatest male motivator for better living (more so than fear of cancer, heart attack, or stroke). The Hardness Factor asks, Can men be hard and in shape for sex their entire lives? The answer is, absolutely. Here for the first time are scientific, evidence bases regimens - emphasizing nutrition, supplements, and exercise - to increase the erectile quality. Dr. Steven Lamm's Ten Promises