What Is a Healthy Diet? The Answers Are Unsatisfying
In the 1960s and 1970s, doctors pointed to two likely culprits for the country’s heart disease epidemic: dietary fat and cholesterol. Much of the country tried to avoid fat at all costs. But did the low-fat recommendation help or hurt? And why is nutrition still so controversial?
Bliss Point: How Food Companies Make Us Crave Their Products
How did food companies get us to crave their products? They discovered the "bliss point."
Is the Key to Obesity All in Your Gut?
Is there a hidden cause of obesity? A professor at Stanford thinks the answer might lie with the 100 trillion microbes living in our bodies.
The Unexpected Science of Exercise
Does exercise really make you lose weight? One scientist went to Africa and found an unexpected answer.
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Can We Teach Cars to Drive? It's an Uphill Challenge.
Autonomous vehicle technology has gotten better, but how close are we really to a time when a robot chauffeur will be able to safely drive us?
The Moon’s Lasting Pull
Our moon has winked from the heavens as a symbol and anchor, reminding us not only the cycle of life, but also of danger and death. Scientists have brought the moon into sharper focus, and astronauts have left the first footprints there. But will we ever be able to explain its lasting, mesmerizing power of attraction?
Space Law: The Next Generation
An international treaty laid out the basics of space law in 1967. But without a lot of case history to go on, lawyers today have looked to maritime law and Arctic exploration as they lay the groundwork for how space will be governed.
How NASA Sold Us a Trip to the Moon
To launch its lunar landing project, NASA had to find ways to convince the American public that the costly, audacious pursuit was essential. One lasting result: Tang breakfast drink.