Caffeine, chocolate and withdrawal headaches.
D016739:Behavior, Addictive; D002099:Cacao; D002110:Caffeine / Q000009:adverse effects*; D006261:Headache / Q000209:etiology*; D006801:Humans; D019966:Substance-Related Disorders
D002110:Caffeine
CAFFEINE/addiction; COCOA; HEADACHE/etiology