Live from the Great Stagnation: Why in the past two centuries hasn’t there been a tea blend developed that I like more than Earl Grey? What is wrong with our innovation system—or with me?
Earl Grey: "In one case study, a patient who consumed four litres of Earl Grey tea per day reported muscle cramps, which were attributed to the function of the bergapten in bergamot oil as a potassium channel blocker. The symptoms subsided upon reducing his consumption of Earl Grey tea to one litre per day.":