Cocoa products also contain pharmacological substances such as n-acylethanolamines that are related to cannabis, they contain stimulants such as phenylethylamine, which have an anti-depressant and amphetamine-like effect; and they contain compounds that stimulate the brain to release an opiate-like substance called anandamide. When drugs are used to block the brain's opiate receptors, the desire for chocolate disappears, confirming the addictive nature of these types of foods... Full Text