The Jinguji twins, Rumi and Naori, have little in common. Rumi is athletic and straightforward, while Naori is geeky and does ...

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.

Many toys were different in the past. Let’s look at what they were like 100 years ago. This may be when your great-great-grandparents were alive. Image caption, A bedroom with toys from 100 ...