I had a big slice of cake with lots of icing and it fucked me up. My question is how would a person that eats as much calories and sugar daily function? I had cake with lunch and for the rest of the day I had a horrible headache and felt extremly sluggish. Then today I though that there are people that eat 2, 3, maybe 4 times as much sugar and calories as I do. Do these people live in a constant slog? Do they build up a tolerance? Do they just not care?