Five Best Ideas of the Day
Published each weekday, at noon.
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Exercising is contagious — especially if you’re a man.
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We could help millions of Americans if we changed the way we sell hearing aids.
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How tens of thousands of people playing a multiplayer video game are hunting for alien worlds.
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Unlocking the secrets of ‘aha moments’ to discover better ways of learning.
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Technology is drawing the world closer together — and tearing us apart, too.