Caffeine

Sonny Altmann

The Science of Caffeine: The World's Most Popular Drug - Reactions

Caffeine

More than 4 cups of coffee linked to early death. A Mayo Clinic partnered study found that men who drank more than four 8 fl.oz. cups of coffee had a 21% increase in all-cause mortality. However, those that reported that they consumed excessive amounts of caffeine were also likely to smoke and have poor fitness. Dr. Nancy Snyderman from NBC said there were a few discrepancies with the study, but stresses that moderation is still key.
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Sonny Altmann's Caffeine Speech