Saliva-based gel coaxes tooth enamel to regrow, study finds
A clear gel that taps the chemistry of saliva may soon change what happens when a dentist sees a white…
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When Smiles Look Threatening: Social Anxiety Skews Emotion Recognition
New evidence helps explain why social situations can feel treacherous for people high in social anxiety: even a friendly face…
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Correlation, Causation, and the Statistician Who Challenged Smoking
The five-word maxim that powers countless arguments—correlation does not imply causation—has a complicated origin story. Few recall that one of…
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Why Flashed Faces Look Grotesque: The Brain’s Split-Second Trick
Stare at a tiny cross between two celebrity portraits, and within seconds their faces seem to buckle and warp into…
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Can AI Eat Itself? The Real Risk of Model Collapse
What happens when artificial intelligence starts learning mostly from itself? Picture a photocopy of a photocopy—edges blur, colors wash out,…
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Japan’s Ancient Wisteria Casts a Dreamlike Purple Canopy Each Spring
Under a vaulted haze of lavender, a stone stairway climbs through a dream. Each spring in rural Hyogo Prefecture, an…
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Why receding gums don’t grow back – and what to do
You don’t feel it happening until the mirror tells the truth: your smile looks a little longer, a little harsher,…
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Default passwords at the Louvre expose deeper failures
The world’s most visited museum was guarded, in part, by a password you could guess from the gift shop. Recent…
