95KiB, 1080x1080, 1521309989484.jpg View SameGoogleiqdbSauceNAO Anonymous Fri 04 Dec 23:45:42 2020 No.12420639 ViewReplyOriginalReport Quoted By: >>12420698 Why does vasoconstriction make the brain more alert if it means less blood flow? Shouldn't coffee and nicotine make the person pass out?