Relationship between "strength of the nervous system" and the need for stimulation.
D000161:Acoustic Stimulation; D001309:Auditory Threshold; D001887:Boredom; D003069:Coffee; D003441:Crowding; D004327:Drinking Behavior; D005120:Extraversion, Psychological; D005260:Female; D006801:Humans; D007439:Introversion, Psychological; D007699:Kinesthesis; D008297:Male; D009424:Nervous System Physiological Phenomena; D010551:Personality; D010775:Photic Stimulation; D008517:Phytotherapy; D011582:Psychological Theory; D012919:Social Behavior; D014796:Visual Perception
D003069:Coffee