title: Caffeine IQ: how much is too much?  Most people can drink a few cups a day.  A higher intake may have negative side effects.
mesh_terms: D001628:Beverages; D002110:Caffeine / Q000008:administration & dosage / Q000009:adverse effects*; D000697:Central Nervous System Stimulants / Q000008:administration & dosage / Q000009:adverse effects*; D004347:Drug Interactions; D006801:Humans
chemical_list: D000697:Central Nervous System Stimulants; D002110:Caffeine