What's Your Chronotype?
Chronobiology is a field of biology that studies the internal clocks of living organisms. A chronotype, then, is a biological predisposition to be a morning person, an evening person or somewhere in between. According to Michael J. Breus, PhD, and sleep doctor to the stars (like Oprah) in his book The Power of When, there are four chronotypes: Lions, dolphins, wolves and bears. Take this quick quiz to find out which one you are.