Doing some research, the interesting thing:
“Hygiene” literally means “the art/technique” of health in ancient greek.
Thus perhaps when we think about hygiene — we first should prioritize our health (not just germ-avoidance).
Then another thought —
The art of mental hygiene and mental health?
Art is technique
When we think of technique, it is the approach. Quite literally, how to do something.
Health is everything, and is philosophy
Philosophy of health — the wisdom of your body.
“The best physician is also a philosopher.” – Galen (Quod optimus medicus sit quoque philosophus.)