Diet...

A woman with a particular shade of hair is terribly overweight, so her doctor puts her on a diet. "I want you to eat normally for 2 days, then skip a day, and repeat this procedure for 2 weeks. The next time I see you, you will have lost at least 5 pounds."

When the women returned, she shocked the doctor by having lost nearly 40 pounds. "Why, that's amazing!" the doctor said, "Did you follow my instructions?" The woman nodded. "I'll tell you though; I honestly thought I was going to drop dead on the 3rd day." "From hunger, you mean?" asked the doctor. "No, from bloody skipping".