PHOENIX (CBS Las Vegas) – Lanna Hamann was just another teenager enjoying a vacation at a Mexican beach resort in Puerto Peñasco.

But then the 16-year-old suffered a fatal heart attack hours after friends say she drank several energy drinks, reports KSAZ-TV.

Lanna reportedly complained she wasn’t feeling well, and went to a clinic, where she died from cardiac arrest.

Arizona cardiologist Jack Wolfson said the high levels of caffeine and sugar in the energy drinks likely contributed to her death.

“There is medical evidence that these things do harm, they can cause changes in the heart rhythm, and impact blood pressure,” he said.

One of Lanna’s friends says she cannot believe the athletic and healthy teen is gone. “I learned from her every day, it’s like, I’m not ready to say her name in the past tense, and I don’t know if I will, she still lives with me and always will,” said the friend.

The friend added Lanna was funny and full of life, and also loved energy drinks.

Now instead of looking forward to back to school season, the Hamann family is preparing for Lanna’s funeral.

(TM and © Copyright 2014 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2014 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)


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