There was a discussion at lunch today about how eating a big chocolate bar can require 2 hours on an exercise bike to burn it off. I've always found these comparisons a bit misleading. It makes it sound like that's the only way to keep from getting fat.
Fact is, a 100 g of milk chocolate has about 520 calories, which will indeed take 1 to 1.5 hours to burn off on an exercise bike. Or you could just sleep for 7 or 8 hours and it would also be burned off.
So go ahead and have that candy bar! Just be ready to either cycle for 2 hours or sleep for 8 hours. OR... sleep for 10 hours and lose weight. Mmmm... chocolate + naps = weight loss. I think I could start a very popular weight loss program.