This invigorating spice has an exotic reputation and stimulates endorphins. No wonder it is considered a symbol of love.
The deep red color of many kinds of chili pepper suggest their association with love and passion, because in many cultures the color red is linked to these emotions. Along side it's sensual color, Chili peppers contain capsaicin which, when consumed, increases heart rate, induces sweating and increases the sensitivity of nerve endings, thus giving the same physical reactions experienced during sexual intercourse. Furthermore, it stimulates the release of endorphins--neurotransmitters that provide a feeling of a natural high, which are also generally released during sexual intercourse. Capsaicin is also a natural irritant to humans. In mild quantities this can actually add to its aphrodisiac qualities as it can produce a tingling, stimulating sensation. The lips and tongue of someone who has recently eaten a chili pepper will often burn slightly, making their kisses hot.