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Busting Myths about Cortisol with Beth Skwarecki

The Stronger By Science Podcast

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The Misunderstood Effects of Caffeine on the Body

Caffeine is often mistaken as a stimulant, but its primary action is to block adenosine receptors in the brain, which prevents the feeling of sleepiness and promotes wakefulness. Initially, caffeine may lead to increased epinephrine, norepinephrine, and cortisol levels, resembling a typical stimulant effect, but this response diminishes within a few days of regular caffeine consumption. Therefore, the long-term wakefulness effects of caffeine are primarily due to its interaction with adenosine receptors rather than a sustained stimulant response.

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