A friend of yours who has been doing some recent heavy drinking asks you what to do to "sober up" as quickly as possible. your best answer would be:

Answer;

Time and metabolism

Explanation;

Metabolism is a key factor in sobering up, one may sober up sooner than anther with the same gender and weight, due to the differences in metabolism.

Other factors that affect sobering up are amount of alcohol and speed of consumption, gender, biological factors, dehydration and time among others.

Therefore, in this case, the best answer would be time and metabolism.