Walking might seem simple. But it’s not, explains epidemiologist Peggy Cawthon, science director of the California Pacific Medical Center Research Institute. It’s an amazingly complex behavior that ...

Anyone who has ever opened a language app, taken a lesson or two, and wondered, Is this actually teaching me anything? — Babbel is the program that finally answers “yes.” Developed by a team of more ...

If your starter word contains a rarely used letter, rethink your strategy. Here are the most commonly used letters in the alphabet. CNET editor Gael Fashingbauer Cooper, a journalist and pop-culture ...