Gym and fitness

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Across
  1. 3. Capacity to sustain prolonged physical activity
  2. 4. Body's ability to resist infections
  3. 5. a chemical to reduce pain and make you feel relaxed
  4. 7. Long weightlifting rod
  5. 8. Ability to recover from difficulties
Down
  1. 1. Pedal device for indoor cycling
  2. 2. Free weight used for lifting
  3. 6. Machine for running indoors