Will the mouth fade after drinking coffee? Maybe it's caffeine!

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Caffeine can get rid of morning fatigue and activate energy. But a study from Cornell University found that caffeine temporarily paralyzes taste buds, making food and drinks less sweet. The study was published in the journal Journal of Food Science.

Caffeine is a powerful adenosine receptor antagonist. Inhibiting adenosine receptors keeps people awake and weakens their ability to sense sweetness, so it makes people want to eat more sugar.

Robin Dando, an associate professor of food science and author of the study, said: "caffeine can change your taste when you drink coffee, and if you eat directly after drinking caffeinated coffee or other drinks, you will feel very different about the food." "caffeine reduces human sensitivity to sweetness, supporting the idea that adenosine receptors regulate taste," the article said. "

In the blind study, one group of subjects drank decaffeinated coffee with 200 milligrams of caffeine, about the same amount as their daily caffeine intake. The other group of subjects drank simple decaffeinated coffee, while both groups added the same amount of sugar. The group that drank caffeine thought it was less sweet.

In the second experiment, subjects were tested for their alertness and asked to estimate the amount of caffeine in the coffee they drank. Subjects who drank caffeinated or non-caffeinated coffee were more alert, and none of the subjects could predict whether the coffee they drank was caffeinated.

"We think the behavior of drinking coffee may be a placebo or an adjustment effect." Dando said. "considering the Pavlov effect, the act of drinking coffee is often accompanied by vigilance, even if the subjects drink coffee without caffeine."

"Coffee behavior seems to be very important," Dando said. "just thinking about what you're doing will wake you up and you may feel more awake." (biological Valley Bioon.com)