Fuel kids’ brains, download homework tool kits, and take a quiz about an ancient complaint letter
Our Top 10: Katie Ledecky’s mysterious health condition, what working long hours does to your body: the end of the colonoscopy?
Will a new blood test replace colonoscopies? Also, Magellan’s cursed journey
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17 ways to explore Paris. Plus: the great American road trip
Why corn syrup is so bad for you. Plus, does the moon affect your health?
Is boredom actually good for you? Plus, fire tornadoes and the mini-detective tracking down pollution
Photo of the Week: Mother Nature’s fury, saving its creatures, appreciating its beauty