Feature

Health scare of the week

Getting too much of a jolt

Health scare of the week

Getting too much of a jolt

The buzz you feel after a can of Red Bull or Enviga isn’t “energy”—it’s an unhealthy increase in blood pressure and heart rate, says a new study. These energy drinks are loaded with caffeine and other stimulants that send heart rates soaring. When researchers gave two cans of a popular energy drink to 15 healthy volunteers, their vital signs changed dramatically in a short time. The blood pressure of the participants, whose average age was 26, increased by nearly 11 percent, and their heart rates increased by a whopping 11 beats per minute. “This occurred while participants were sitting in chairs watching movies,” study leader James Kalus tells HealthDay. The pounding hearts probably wouldn’t lead to any serious short-term consequences for young, healthy adults, he says, but a person already suffering from high blood pressure How the fifth planet might look or heart disease is asking for trouble.

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