When I'm not following a healthy eating plan, I tend to fall asleep quite easily, and quite early on in the evening (half past ten ish.)
I've noticed that when I start losing weight that I struggle to fall asleep (and also to stay asleep.) I find it hard to get to sleep before midnight, despite trying to. It isn't necessarily hunger that keeps me awake, as I have fruit by the side of my bed should I feel peckish. I follow all the same routines I do when not dieting.
I know this sounds a bit odd, but I find myself feeling almost energised at night time, and it feels almost like my body is metabolising something and it's keeping me awake. (It almost reminds me of when I've got a cold, or an illness, and you can almost feel your body fighting it off.)
I've tried a google about losing weight, metabolism and sleep and it doesn't throw anything up.
Does anyone else find this? Is there some science behind it?