Maybe you need to absorb less calories if your diet is mostly vegetable based? Also, some vegetables contain enzimes that help digestion. I'm no doctor, but ev

Maybe you need to absorb less calories if your diet is mostly vegetable based? Also, some vegetables contain enzimes that help digestion. I'm no doctor, but even if that particular logic is flawed, I do believe that a diet based on fruit and vegetables does reduce your need for sleep (or rather, that a diet based on processed foods does increase it.) My particular explanation is that such diet is just healthier, so your body has less to "repair", whatever that means. Just like exercise: you'd think all exercise would increase your need for sleep, right? I find I'm actually more rested with less sleep when I do light exercise (which I admit isn't often enough.) Eastern medicine is full of dubious explanations about why some therapies work. I don't believe most stuff I read about why Yoga, Shiatsu, acupuncture, etc. work, but I do believe they work. You can only attribute so much to placebo. Bottom line: stop guessing what should work based on our incomplete knowledge of the very complex system our body is, and just try for yourself. Wake up with the sun, do light exercise, and eat more fruit, vegetables, and generally food that is less processed and more lightly cooked. It can't hurt!