Your DNA holds the key if you are a morning person or a night owl. Genetics company 23andMe conducted a DNA analysis on almost 90,000 individuals and found 15 genes associated with being a late or early riser.
The body’s internal clock is called the circadian rhythm and it determines the individual’s choice between getting out of bed early or staying awake until the wee hours of the night. Scientists call this preference the “chronotype.”
