


The middle-aged are no longer the most miserable
Youth used to be cheerful. No more
FOR DECADES, surveys have suggested that middle age is the low point of life. While young and old generally reported high levels of life satisfaction, those in mid-life endured a slump. This “U-bend of happiness” or “hump of despair”, depending on perspective, has been documented hundreds of times across many countries. The age of peak misery varied—the Swiss were saddest at 35, Ukrainians in their 60s—but the pattern was consistent.
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The rise of beer made by AI
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A successful test flight puts Musk’s Starship back on track
The engineering is working at last, but the schedule is still a fantasy

A Chinese lab starts to tackle a giant mystery in particle physics
The JUNO detector, hidden deep beneath a mountain, will hunt for the universe’s most elusive particles
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The evidence for sweating it out is promising but incomplete
The discovery of a gene for chronic pain could herald new treatments
Even diet might have an effect
Old fossil-fuel plants are becoming green-energy hubs
The dirtiest parts of the energy system could help build the cleanest