Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.
It's time to celebrate a year of music with the 2025 Grammys. Top nominees include Beyoncé, Charli XCX, Billie Eilish, Taylor Swift, Billie Eilish, Sabrina Carpenter and Chappell Roan.