It is wild how people are just pounding back a gallon of lemonade with well over a gram of caffeine in it and then getting surprised when that turns out to be a bad idea.
400 mg per liter isn't all that high, that's a little higher concentration than coffee but not by much. Maybe it's easier to pound back cold sugar water than hot bitter coffee, but even so it's weird cause there's not a trend of people just chugging a full gallon of coffee and then spontaneously dying. Is this literally just a case of "people who drink coffee build up a tolerance to both the taste and caffeine, while anyone can just chug a literal gallon of sugar water with no caffeine tolerance at all"?