Businessman's Exercise
Doug McGuff, MD, is an ER physician. He is also an expert in exercise.
He recommends a unique program: under 15 minutes a week for five exercises.
These are high-intensity exercises: 90 seconds each.
He has written a book on this:Body by Science.
Here, he trains a man in this program.
Here, he is coached by a trainer.
If you are short on time for exercising, this may be the way to go.