1. Chocolate: This favorite for Valentine's Day contains phenylethylamine, one of the chemicals your body produces naturally when you're in love (see The Chemistry of Love).

2. PEA or phenylethylamine is a chemical that speeds up the flow of information between nerve cells.

3. Chocolate : Chocolate contains phenylethylamine which helps to release dopamine, which in turn stimulates the production of the "cuddle hormone, " known as oxytocin.

4. Phenylethylamine is also found in chocolate. It's related to amphetamines , which are strong stimulants.

5. Chocolate has phenylethylamine and serotonin, two chemicals that light up pleasure areas in the brain.

6. The enzymatic resolution of 1 - phenylethylamine by amidation reaction in organic medium was studied.

7. Chocolate is one of the foods cross-over aphrodisiac foods. Chocolate contains a chemical (phenylethylamine) that is a stimulant perhaps related to stimulation and arousal.

8. There are those who may be addicted to that love "high." They need that amphetamine-like rush of dopamine, norepinephrine and phenylethylamine.

9. They could have been right-research shows chocolate contains the chemical phenylethylamine, the same substance the brain produces when people fall in love.