Mind-Blowing Facts About Genetics That Doctors Wish We All Knew

This preference, known as chronotype, is partly determined by genetic variations that affect your internal body clock, or circadian rhythm. Certain genes, such as PER2 and CLOCK, have been identified as playing a role in regulating sleep-wake cycles and determining individual chronotypes.

While environmental factors like lifestyle and daily routines also contribute to your sleep habits, understanding the genetic basis of chronotype can provide insight into why some people naturally feel more alert and energized in the morning, while others are more productive and active during the evening and nighttime hours.