Understanding the Human Chronotype Research

Abstract

A chronotype is essentially your body's innate tendency towards a specific sleep-wake pattern. It is controlled by heredity and works in unison with your circadian rhythm, or internal 24-hour clock. Knowing your chronotype can help you improve your daily energy levels, work more efficiently, and sleep schedule. Countries like the United States have a typical distribution of chronotypes; 25% morning types, 50% intermediate types, and 25% evening types. The distribution is skewed in tropical nations, where morning types are more prevalent. Seasonal variations, occupation, social and cultural characteristics, ageing, and lifestyle factors all have an impact on similar changes in chronotype. Studies show that while people are younger, they want to do things in the morning, but as they become older, they move to the afternoon and evening. Geographical differences are the main factor influencing the spread of chronotypes. It is well recognized that evening types are more suited to a nighttime lifestyle and shift work than morning types, as our society grows more dependent on nightlife and shift work in a 24/7 environment. Therefore, research on shifts in sleep-wake preferences would be beneficial for modifying social and professional practices to achieve optimal productivity, minimal errors, improved sleep quality, and a higher quality of sleep.