Gym and fitness

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