Just follow these!
No crap in, so less to clean out.
No foods (sugars, junk) to cause out of
balance (which causes malfunctioning:
Flushing with water, blood flow (exercise)
Moving lymph (movement)
Occasional fasting can help
Leave 12+ hours a day without eating, so
can digest and clean out food
Exercise program (minimum 30 min.)
Adequate sleep, early regular bed time
Rest, relaxation (back to homeostasis)
Prevent degeneration; avoid overload
Ergonomics (and link into related)
No excessive loads beyond capability or
Just follow the rules and the principles and you'll live long and prosper (especially in happiness!). (See Physical Contents/Links.)