Overconsumption of “normal” tea can have something of an overstimulating effect, but “liquorice” tea might take you a step further by offering you the chance to meditate for eternity in the dark depths of limbo as an irreversible consequence of your excesses.
We are not talking here about twelve cups of tea a day (the average for an average Englishman, who claims to drink only one cup, at “Tea Time,” but who secretly gorges on tea as good Frenchmen do on coffee), but our man who was admitted to the emergency department with very elevated blood pressure insisted that he only drank a cup or two a day!
https://www.livescience.com/65568-licorice-oversdose-high-blood-pressure.html