Interestingly enough, a similar phenomenon does exist when using a compound called dinitrophenol. Naturally, like with every useful drug, it's been demonized an

Interestingly enough, a similar phenomenon does exist when using a compound called dinitrophenol. Naturally, like with every useful drug, it's been demonized and banned. What it basically does is make energy use inefficient, so a specific action (like clenching your fist) consumes more energy than normal.