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Research suggests that coffee may just have a psychological effect?

Published: 2026-04-03 Author: World Gafei

Last Updated: 2026/04/03, Many people like to drink a cup of coffee in the morning in order to cheer up and start a busy day. Refreshing coffee in the morning may just be psychological, British researchers have found. The volunteers were randomly divided into two groups: the first group drank caffeinated coffee but learned that it contained no caffeine; the second group drank decaffeinated coffee but learned that it contained caffeine. Compared with before drinking coffee, the first

Many people like to drink a cup of coffee in the morning in order to cheer up and start a busy day. Refreshing coffee in the morning may just be psychological, British researchers have found. The volunteers were randomly divided into two groups: the first group drank caffeinated coffee but learned that it contained no caffeine; the second group drank decaffeinated coffee but learned that it contained caffeine. Compared with those before drinking coffee, the first group of volunteers performed better in the color discrimination test, but the reaction speed was not faster; the second group of volunteers improved both color resolution and reaction speed.

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