Energy boosters work no better than coffee: study

There has been some concern about the combination of ingredients, such as guarana, taurine, and L-carnitine, found in energy drinks and boosters, and health experts are calling for more research to determine their safety.

While the labels on caffeinated energy drinks may promise a blend of ingredients to help you focus and feel recharged, a new study finds that ordinary caffeine works just as well.

In a new study from Centre College in Danville, Kentucky, researchers analysed subjects' brain activity while they performed tasks requiring attention, LiveScience reports.