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  1. Fitness: What It Is, Health Benefits, and Getting Started

  2. Fitness: Definition, factors, and types - Medical News Today

  3. Physical fitness - Wikipedia

  4. Healthline Fitness

  5. Fitness Advice, Workout Tips, and More - Health

  6. Importance of Exercise: Benefits & Recommended Types - Harvard Health

  7. 10 Best Exercises for Everyone - Healthline

  8. Fitness Fitness basics - Mayo Clinic

  9. Apple Fitness+:让你爱上运动的全新个性化健身体验,随 Apple

  10. Verywell Fit - Know More. Be Healthier.