Why Do We Yawn?
Why Do We Yawn?
St. Louis Fed President Discusses Interest Rate Options
Unlock your personal NFL Now stream by signing in to NFL.com
Researchers are starting to unravel the mystery surrounding one of the most common behaviors: the yawn. WSJ's Jonathan Rockoff and evolutionary psychologist Dr. Andrew Gallup explain new studies suggesting it's a way of keeping your brain sharp. Science has disproved the theory that it's the body's way of sending oxygen to your brain when deprived. Says Rockoff, one of the leading theories is that yawning is a "cranial air conditioner." In times of stress and anxiety, we experience a slight rise in brain temperature. So the body steps in to cool it off.
St. Louis Federal Reserve president James Bullard explains to WSJ chief economics correspondent Jon Hilsenrath that, though the markets have recently been volatile, he is confident in the September schedule for raising national interest rates.
Tired of lugging a laptop? Using a tablet and smartphone, WSJ's Michael Hsu creates an ergonomic pop-up workstation. Photo/video: Drew Evans/The Wall Street Journal.
Eric Rose expected a rush of business advising American companies when he opened a branch of his Manhattan-based law firm in Myanmar three years ago. Today his business is barely hanging on. Photo: Kaung Htet for The Wall Street Journal
Fashion has a new 'It' accessory. Designers are stepping in to offer luxury iPhone cases that make personal style statements. Photo: Getty.
Barron's senior editor Jack Hough previews the new issue of Barron's magazine, which includes analysis of the market's recent plunge and why China's market may still fall. Photo: Getty.