<p><b> by Andrew Caringi</b></p><p>Scientists have just discovered Viagra for the brain—just in time for Valentine’s Day. A small injection of kisspeptin</a>—a key hormone in puberty—enhances the brain’s sexual appetite. This is different from Viagra, which illicit a purely physical response. When shown romantic imagery, men who received kisspeptin had increased activity in their brain’s sexual arousal centers.</p><br /> <p>The post Scientists Discover Viagra For The Brain</a> appeared first on Vocativ</a>.</p>
