The most healthy; having the best physical and mental condition.
From Old English 'hælth' (wholeness, soundness) + '-y' suffix + '-est' superlative. 'Health' originally meant being whole and unbroken.
Interestingly, the healthiest human populations often live in 'Blue Zones' (parts of the world where people regularly live past 100), and they share habits like strong communities, not dieting obsessively, and doing physical work daily.
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