What’s Your Chronotype? Understanding the “Lark” and “Owl” Circadian Sleep Patterns

A New York Times column examines the factors that contribute to your preferred sleep schedule. This is also called your “chronotype.” It turns out that your DNA has a strong influence on when you like to sleep.Some people have a circadian clock that makes them “evening types.” These “owls” have a natural tendency to stay up late at night and sleep late in the morning. Children tend to become