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- Aged--Health and hygiene (8)
- Aging (2)
- Health promotion (2)
- Aging--Cross-cultural studies (1)
- Exercise for middle aged persons (1)
- Exercise for the aged (1)
- Exercise--Physiological effect (1)
- Health behavior (1)
- Middle aged persons--Health and hygiene (1)
- Physical fitness for middle aged persons (1)
- Self-care, Health (1)
- Stress (Psychology) (1)