Coffee and energy drinks: what they do to your Heart's hidden wiring

NCT ID NCT04886869

First seen Mar 09, 2026 · Last updated May 13, 2026 · Updated 11 times

Summary

This study measured how caffeine from coffee and energy drinks affects the autonomic nervous system—the part of your body that controls heart rate and other automatic functions. Twenty healthy adults were monitored using ECG (heart electrical activity) after consuming caffeine. The goal was to understand if caffeine disrupts normal autonomic balance, which could help explain why some people feel jittery or have heart palpitations.

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Contacts and locations

Locations

  • University Hospital Munich (LMU Klinikum)

    Munich, Germany

Conditions

Explore the condition pages connected to this study.