In the late 18th century, King Gustav III of Sweden harbored a deep suspicion towards coffee, considering it as dangerous as poison. Determined to validate his belief scientifically, Gustav initiated a rather macabre experiment. He commuted the death sentences of twin brothers, both convicted murderers, on one condition: one twin would drink three pots of coffee every day, while the other would consume the same amount of tea. The king's theory was that the coffee-drinker would die first, thus pr