Nearly 90% of the United States population has at least one caffeinated beverage every day. Learn about the chemistry of caffeine, how it causes increased alertness and focus, and how caffeine is capable of causing overdoses.

When the Eds, Jonny, Kevin, and Rolf make bets to give up their respective habits for a day, they cope with it in varying ways. It is evident that they are addicted to certain habits and foods soon after the bet begins. As is characteristic of him, Eddy tries to sabotage the others so that he can win the bet.

Legolas competes with Gimli in a drinking competition, and the last one physically standing wins. After tens of drinks, Legolas feels tingling in his fingers, while Gimli passes out from all of the alcohol.

Emma is very "sick" after not taking her pills for a few hours. When the pharmacist gives her the pills, she immediately feels better. The pharmacist later reveals that the pills are actually just sugar tablets and that Emma's illness is all in her head.

Kel goes to buy orange soda but finds out that the store locked up the fridge, preventing him from doing so. He says he cannot live without it and faints as a result.