Instead of coffee beans, the active ingredients are guarana (an Amazonian plant rich in caffeine), taurine (a supplement used in energy drinks), and ginseng. Like e-cigarettes, these devices use a ...
The Gazette offers audio versions of articles using Instaread. Some words may be mispronounced. IOWA CITY — Mirroring the energy-drink tide swelling across the country of late, a University of Iowa ...
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