lower tolerance quickly

[Alive]

Exercise. I'd say specifically, running. Running burns more calories than almost any other exercise, and so it goes without saying that it probably burns the most metabolites in your system.

Burn metabolites = lower tolerance

But, I don't know, 2 days isn't a very long time to get your tolerance down...no matter what ya do, mi mano. =)

actually walking fast burn more calories then running