I think there's a Japanese saying about stopping you're 4/5ths full, and there are other sayings like "tie off the sack before it's full," etc. I have been tryi

I think there's a Japanese saying about stopping you're 4/5ths full, and there are other sayings like "tie off the sack before it's full," etc. I have been trying it recently and I definitely feel less lethargic in general, especially after lunch, but after dinner too.