Can this test speed diagnosis of Alzheimer’s? Plus, fake Ozempic; a rival to the Mediterranean diet; what bad posture does to your body

Plus, what sugar and fat might do to your body, the history of medical tourism, and why America hasn't banned these dangerous snack ingredients (yet).

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How doing favors helps your health, too

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How a fearful king hunted down ’witches’. Plus, the little-known person who saved the world; and the outsize effects of posture

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