There have been reports of increased caffeine usage among teens despite experts warning about the harms of energy drinks for this population, such as heart palpitations, anxiety, and increased blood pressure.1,2 While rare, caffeine overdoses, or ingesting too much caffeine in a short period of time, can lead to severe arrythmias, heart attacks, and even death.3 We studied 223 million ED visits for patients aged 11 to 35 between January 1, 2017, and December 31, 2023, to understand trends in caffeine-related visits.
We found that the rate of ED visits related to caffeine overdose or adverse effects more than doubled for middle school aged children, from 3.1 per 100,000 visits in 2017 to 6.5 per 100,000 visits in 2023. Similarly, the rate nearly doubled for high school aged children, from 7.5 per 100,000 visits to 13.7 per 100,000 visits. Additionally, in all but the youngest population, male patients had much higher rates of caffeine-related ED visits than female patients, sometimes triple the rate. This aligns with prior findings that males have an increased response to caffeine compared to females, which might result in more adverse reactions.4