The 5 Levels of Fatigue is a system developed by (me) food scientist and biochemist Danielle Robertson, author of Are You a Monster or a Rock Star-A Guide to Energy Drinks. This system matches a Level of Fatigue with chemical properties (like carbonation, % fruit juice etc) of the corresponding beverage. Caffeine is not always the answer either! Level 1 is dehydration so water is the best option.
Energy Drink of the Month series
Explore the CAFFEINE INFORMER database