hygiene; health rules; regimen for health
Refers to a systematic approach or set of rules for maintaining health, often used in contexts like traditional health practices or lifestyle guidance.
He follows a strict health regimen.
This book describes in detail the health practices of people in the past.
健康法 is a broader, more common term for any health method or practice, whereas 摂生法 has a slightly more formal, traditional nuance of a prescribed regimen.
Compound of 摂生 (せっせい, 'health care, hygiene') and 法 (ほう, 'method, rule'). 摂生 itself is derived from classical Chinese, combining 摂 (manage, administer) and 生 (life).