Guy goes to the doctor, the doctor says: "I have some bad news, and some good news."
"What's the bad news?"
"Because of your condition, you’ll have to live on a very strict diet. No chocolate or sweets, no fried stuff, no coffee, no meat, no bread, no milk and no milk products in general. You can eat only green vegetables. And you’ll have have to stay on this diet for the rest of your life."
"That’s awful! What is the good news?"
"You’ll only need to maintain the diet for a month, maybe six weeks at the most."