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Transcript for Caffeine's Effects on the Human Brain
This transcript has been automatically generated and may not be 100% accurate.
{"duration":"2:11","description":"Lisa Stark looks at how caffeine interacts with our brain. ","mediaType":"default","section":"ABCNews/WNT","id":"16141081","title":"Caffeine's Effects on the Human Brain","url":"/WNT/video/caffeines-effects-human-brain-interacts-blood-flow-lisa-stark-health-16141081"}