Need A Reason to Quit Coffee? It Decreases Blood Flow to the Brain 20-30% [405SortilJP]

Health Updated on August 12, 2026 EDT — Published on August 12, 2026 EDT

Sources: Comparison of caffeine-induced changes in cerebral blood flow and middle cerebral artery blood velocity shows that caffeine reduces middle cerebral artery diameter. ABC News Video on MRI before and after caffeine: COFFEE VIDEO SERIES PLAYLIST⤵