Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
Paraxanthine, a compound the body naturally produces when it breaks down caffeine, is starting to appear in energy drinks and ...
Guarana contains more caffeine than coffee, but both substances have health benefits. Consuming too much caffeine from any source can cause unwanted side effects. Guarana and coffee contain different ...
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