Having one energy drink can damage blood vessels.
Scientists now believe that energy drinks could make it harder for blood vessels to move oxygen around the body. A new study from the University of Texas Health Science Center looked at the effects of the caffeinated beverages when taken before exercise. Energy drinks constrict the blood vessels, making it harder to pump blood and oxygen when the body needs it the most. In some cases, people have suffered cardiac arrest.
The results after just one drink showed acute blood vessel function reduction. That makes the heart work harder.
Despite possible negative effects of the drinks, their popularity among teens has risen steadily in the last few years.
The energy drink industry maintains that the beverages are safe and that nothing in this study runs counter to that.
Source: Atlanta Journal Constitution