Ginseng
 

This naturally occurring substance comes from a root native to the Asian continent. Ancient Chinese medicine identified Ginseng as a Stress reducer and aphrodisiac. While it is a stimulant, one of the by- products of the chemical interaction is a hormone that helps a person deal with mental stress easier. Ginseng can also be used as a cure for sexual dysfunction. Sexual activity has certainly been shown to increase a person's life span, as it also releases a flood of happy, healthy hormones.