People who regularly consume caffeine show a stronger cortisol response when exposed to social stress, compared to those who do not.

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Habitual Caffeine Use Is Associated With Heightened Cortisol Reactivity to Lab-Based Stress in Two Samples

Cross-Sectional Study

Human

2024 Oct 1

People who drink caffeine regularly tend to have a stronger stress hormone response when faced with social stress, like giving a speech, compared to those who don’t drink caffeine often. This study found that in two groups of young adults, regular caffeine drinkers had higher stress hormone levels during a lab stress test.

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Source Study

Habitual Caffeine Use Is Associated With Heightened Cortisol Reactivity to Lab-Based Stress in Two Samples

Score: 39

DOI: 10.1097/PSY.0000000000001334

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People who regularly consume caffeine show a stronger cortisol response to stress, and this pattern was observed in two separate groups of young adults.

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Consuming caffeine on the same day as a stress test does not change the level of cortisol released in response to stress in healthy young adults. The pattern of cortisol response is more likely related to regular, long-term caffeine consumption than to a single dose.

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Consuming 750 mg of caffeine daily in three doses increases cortisol levels throughout the day when individuals are exposed to mental stress, physical exercise, or eating after exercise, and this increase occurs similarly in both men and women, though the overall stress response size may differ by sex.

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Studies have found that the effect of rumination on cortisol levels varies between groups, which may be because caffeine use and depression risk factors interact differently depending on the environment or other unknown factors.

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