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 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-based regimens to increase erectile quality. Dr. Lamm offers straight talk for men of all ages, including the Six Week Hardness Factor Program designed to improve a man's sex drive, stamina, hardness, and most of all health. The programs in The Hardness Factor will enable you to:Improve overall healthProduce stronger, harder, and longer-lasting erectionsIncrease strength, fitness, flexibility and vitalityRestore self-confidenceAchieve maximum sexual gratification with your partnerAfter following The Hardness Factor, you will not only achieve optimal health and sexual fitness but also understand why the penis is the best barometer of a man's health.