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Staring at the ceiling while the clock blinks 3am doesn’t only sap energy for the next day. A large, long-running US study of older adults has now linked chronic insomnia to changes inside the brain that set the stage for dementia.

The…

Dr. Steven Austad, the scientific director of a nonprofit researching healthy aging, never fretted too deeply about his own longevity.

“I used to train lions for a living,” Austad told Business Insider. “It was not…

Lauren Edgar has spent nearly two decades at NASA studying the moon and Mars, guiding rover missions and helping design lunar science for the Artemis program. Now, she’s trading her role behind the console for a shot at flying to space…

WASHINGTON — A fossil unearthed in Argentina of a newly identified species of meat-eating dinosaur is providing insight into a poorly understood group of Cretaceous Period predators, thanks not only to its extensive skull remains but also to…

Millions of years before dinosaurs began roaming Earth, strange-looking creatures were scuttling across the seabed. They looked like they were wearing spiked helmets, with little eyes on top and a sharp tail sticking out the back.

The horseshoe…