USA Today's Morgan Hines describes the science accounting for recent tragic accidents involving parents leaving their kids in hot cars, and why you cannot chalk it up to negligence. She also offers a possible solution so that it doesn't happen in the future.

WSJ's Andrea Petersen on insomnia and some of the best ways to combat it.

John Jurgensen of The Wall Street Journal on 'Mars' and the rise of 'premium nonfiction' TV.

The Wall Street Journal's Andrea Petersen explains that insomnia and sleep are more complicated than we may think.