Within 90 minutes after eating an energy drink, there is a particular risk of stroke or heart attack, according to a recent scientific study.
According to the researchers, this is due to the fact that energy drinks restrict blood vessels, which can limit the flow of blood to vital organs.
While previous studies have found a link between energy drinks and stomach, nervous and cardiac problems, new findings at the University of Texas at Houston are the first to find a relationship with increased risk of heart attack and stroke.
The researchers examined 44 students at McGovern's medical school at UTHealth, all of them close to 20 years of healthy and healthy lifestyles and none of them smoked.
They monitored endothelium function, the cell layer that aligns the surface of the blood vessels, whose malfunction has been shown to be evidence of heart attacks as the arteries can not expand properly.
Endothelial function was measured before and after each of them received a 12 ounce energy drink, equivalent to 355 milliliters. 90 minutes after swallowing, the diameter of the blood vessels had dropped by almost half.
The risk of these products
"As energy drinks are becoming more and more popular, it is important to study the effects of these beverages on those who consume them frequently and to better define what it is and whether there is a safe-drinking model," explained Dr. John Higgins.
Other studies have studied this type of product and its effects on health: Research at the University of Waterloo in Ontario, Canada, found that 55% of respondents aged 12 to 24 reported having conditions such as vomiting, chest and even and spasms after having a drink.
The main author of this study, Professor David Hammond, said: "Most of the risk assessments to date have used coffee as a reference for assessing the health effects of energy drinks, but it is clear that these products are a greater health risk ".