Does anyone know anything about metabolism? Can it change, for example. "Speed up" or "slow down" or are those just rumours.
Basically, even 1500 calories a day would make me put on weight. I changed my habits and went on holiday for a couple weeks, panicking that each day I was eating more than 1500 calories, some days a little less, most days up to 1800 (kept a rough track through myfitnesspal but you don't always know what's in restaurant food do you?).
Come home and I'm 4 pounds lighter. I've checked this again at the same time each day etc (I also got my dad to re-calibrate or reset the scales or whatever you do) but it's the same every time.
Feel like my metabolism has somehow improved?