Modern science has improved the modern vomitorium: eat and eat, purge and purge (through exercise).
Six minutes of intense exercise a week does as much good as six hours, according to a study.
People could cut their workouts from two hours a day, three times a week, to just two minutes a day and achieve the same results, claim researchers. . .
. . . One group cycled for two hours a day at a moderate pace. The second biked harder for 10 minutes a day in 60-second bursts.
The last group cycled at an intense sprint for two minutes in 30-second bursts, with four minutes of rest in between each sprint.
At the end of the two weeks each of the three groups was asked to repeat the 18.6 mile cycling test. Every subject was found to have improved to the same degree.
Further tests showed that the rate at which the subjects' muscles were able to absorb oxygen also improved to the same level.
Link.