BRYAN-COLLEGE STATION, Texas – A new study by Texas A&M researchers has found that some energy drinks can have adverse effects on the muscle cells of the heart. The study, published in Food and Chemical Toxicology, found that consumption of some energy drinks was linked to improper beating of the heart, cardiomyopathy, increased blood pressure and other heart conditions. They determined that theophylline, adenine and azelate were substances which can have negative effects on the heart, but said more research is warranted. “This study shows that some of the tested energy drinks may have effects on human cardiomyocytes, and these data corroborate other studies in humans,” Rusyn said in a press release from the university. “Therefore, we hope that the consumers will carefully weigh the performance-enhancing benefits of these beverages versus the emerging data that suggests that they may have real adverse effects.