New research shows decaf coffee can mimic caffeine’s effects in habitual drinkers
www.psypost.org
Drinking coffee might wake you up even without the caffeine. Researchers found that habitual coffee drinkers responded similarly to both regular and decaf coffee, pointing to the influence of expectation and ritual on alertness and brain activity.
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The original was posted on /r/science by /u/mvea on 2025-05-27 10:03:44+00:00.

Original Title: Effects of coffee may have less to do with caffeine and more to do with the ritual. Double-blind, placebo-controlled study of habitual coffee drinkers found that decaffeinated coffee produced many of the same physiological and cognitive responses as caffeinated coffee.