Lazy-aging is just one method among many for trying to stay healthy, so I think we need to define what health actually is first.
The WHO says: “Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.”
Japan’s Ministry of Health follows pretty much the same idea.
I agree with it in principle… but honestly, it feels way too broad and idealistic. Especially the “social well-being” part — that’s often something one person can’t control at all.

Death — the complete opposite of health — is very clear and the same for everyone. But health? It’s different for every single person. Even for the same person, it changes depending on the day. And most of the time, you don’t even realize how healthy you actually are until you lose it.
Because of that, I find it really hard to draw a clean line and say “this is healthy” and “this is unhealthy.”
Sure, we could just say “If you don’t have a disease, you’re healthy!” But that attitude makes people get careless, and it also ignores people who are already living with some kind of condition.
As I wrote at the beginning, Lazy-aging is one approach to health — but its main focus is “aging as slowly as possible.” Whether you have a disease or not isn’t directly the point.
So for now, in the context of Lazy-aging, let’s define health like this:
Broad sense: You’re healthy if you can control yourself reasonably well. Narrow sense: You’re healthy when your goals (what you want), your thinking (how you plan), and your actions (what you actually do) are all lined up and consistent.
If that doesn’t describe you right now… then maybe put Lazy-aging aside for a bit and go get real help from a proper specialist.
