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The Hardness Factor: How to Achieve Your Best Health and Sexual Fitness at Any Age

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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 ...