Coffee increases state anxiety in males but not in females.
Coffee, reproducing the conditions under which caffeine is normally ingested, containing 3, 75, 150 or 300 mg of caffeine was given to healthy male and female volunteers. 25-30 min after drinking the beverage, they completed the Spanish version of the state-trait anxiety inventory (STAI). The beverage increased state anxiety, in a dose-dependent manner, in males but not in females. This could be due to a lesser sensitivity of females to coffee.
Botella
Paloma
P
Department of Psychobiology, Faculty of Psychology, University of Valencia, Valencia, Spain.
Parra
Andrés
A
D000293:Adolescent; D000328:Adult; D001007:Anxiety / Q000139:chemically induced*; D001794:Blood Pressure / Q000187:drug effects; D002110:Caffeine / Q000008:administration & dosage / Q000494:pharmacology; D000697:Central Nervous System Stimulants / Q000008:administration & dosage / Q000494:pharmacology; D002851:Chromatography, High Pressure Liquid; D003069:Coffee; D004305:Dose-Response Relationship, Drug; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male
D000697:Central Nervous System Stimulants; D003069:Coffee; D002110:Caffeine