I get this with my three year old a lot.
Him: “I’m super hungry!”
Me: “You just ate twenty minutes ago! You’re not hungry, you’re just bored!”
Seriously, though, I do have to agree. The busier I am, the less hungry I feel. Last year I pretty much stopped using my lunch breaks for eating in the staff room, and instead went to the gym, walked, or (later) ran for an hour.
I haven’t lost much weight per se, but that’s probably because I am building muscle mass (and I don’t particularly care about my body fat percentage, as I love cheese and beer too much).
I am also reminded of a critique I saw of the Apple Watch’s standing reminders: one person commented that when they get them, they dutifully stand up. With nothing else apparent to do for five minutes, they inevitably wander off to the fridge to get a snack…