Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-personal-fitness-27ec6d9bfaf6

What did Hans Kraus test children for in the 1940s?

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  1. Dental health
  2. Sleep habits
  3. Muscular fitness

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References

  1. Physical fitness en.wikipedia.org/wiki/Physical_fitness Checked 2026-11-07.

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