Our universe appears flat—but this observation still leaves plenty of options for its true shape. In fact, our cosmos could resemble a donut What shape is the universe? This question is far more ...

Amid a flurry of interest in newly declassified US government UFO files, a Chinese researcher has expressed intrigue in an apparent video of a fast-moving, human-shaped object. Zhang Nan, a ...

Americans keep saying they're worried about money. And new data from The University of Michigan (1) underscores the idea that consumers are pessimistic about the economy. Households are still worried ...

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Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the top heart rate monitors we've tested. I'm PCMag's managing editor for consumer ...

Open-heart surgery can lead to long-term side effects such as postoperative cognitive dysfunction (POCD), which can affect people months after surgery, but usually improves within a year. Some people ...

Steps for setting an aspirational target by Boris Groysberg, Jeremiah Lee, Jesse Price and J. Yo-Jud Cheng First you must identify culture targets. The best ones have some attributes in common: They ...

Heart rate variability measures the variation in time between successive heartbeats, providing insights into the balance between the sympathetic and parasympathetic nervous systems, which influence ...

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A K-shaped economy has held up better than expected—and it ain’t nuthin’ but a ‘G’ thang.