A new survey by the Substance Abuse and Mental Health Services Administration shows that the number of people going to the emergency room for treatment after consuming energy drinks has doubled nationwide during the past four years.
According to an article on NBCNews.com, from 2007 to 2011 emergency room visits involving energy drinks has gone from approximately 10,000 to more than 20,000. This is the same period of time when the drinks have received a surge in popularity in stores, bars, and on college campuses. Most cases involve teens or young adults.
Although the report does not say what symptoms brought people to the ER, it does mention that the drinks can cause insomnia, nervousness, headache, fast heartbeat, and seizures. The article says several emergency physicians have seen patients with irregular heartbeats, anxiety, and heart attacks after taking the energy drinks.