That's one way to fight off a beer belly.*
It requires both physical endurance and an ability not to vomit while running on a tummy full of beer.
According to running website FloTrack:
The beer mile requires a runner to drink a can of beer for every lap on a 400-meter track for a mile. The beer must be 5.0 or higher in alcohol concentration and drank from a 12 ounce can that has not been altered. Four beers consumed for four laps. No vomiting permitted.
Personally, we prefer to enjoy our beer
from the comfort of our desks in moderation, and can't condone this exercise.
*No it isn't.