Product Description
Survival of the FIRMEST is a guide to good health and better sex. A firm body leads to overall health with FIRMness in one particular area (an erection) showing that the cardiovascular system is healthy. Nitric oxide (NO), a natural body substance, is crucial for both erections and blood vessel and heart health. Obesity, diabetes, excess dietary sugar and fat, too much alcohol and lack of exercise cause the lining of blood vessels to produce less NO. Increasing a… More >>

Survival of the Firmest: The Hard Science of Healthy Lifestyle and Erectile Function

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