The curse of the “Night-Person”

As we were walking against the heavy traffic coming to town at about 7:55am, I was thinking about all these folks that are not early risers and are struggling every morning to get to work at an ungodly early hour on time. What a torture! 

An early bird myself, and as a young executive I dreaded that 4:30pm meeting that would extend late into the evening when my brains had become totally useless. As a form of reciprocity, when I became a boss, I was the one having early morning meetings to the damn of my night owls associates… Talk about a total lack of memory and compassion! 

Some people (including me) would believe that “Morning Person” vs. “Night Person” is a 50/50 distribution, but this isn’t true at all. In reality, about 15% of people are morning people, 15% are night people, and the remaining 70% fall somewhere in the middle. 

Morning folks (often nicknamed larks or lions) make up one out of six or seven people. They wake up easily and reach peak energy early in the day. There’s the same proportion of night people (owls or wolves) who prefer staying up late and reaching peak alertness at night. 

Then there’s the rest, the so-called intermediate types (sometimes called bears or third birds) that represent the balance or seven out of ten persons (or over half, depending on the specific classification model). They follow a more flexible middle ground aligned with standard daylight hours. 

But these categories aren’t set in stone, as the preferences change significantly over time. If only about 7% of young adults are morning larks (less than the 15% of the general population), by age 60, the vast majority shift toward becoming morning types, so the landscape is a moving one. In fact it’s amazing how age and gender are able to shift these numbers. 

While genetics establish our baseline, our internal clock naturally evolves as we age. There is a distinct biological shift toward late-night wakefulness around age 20. Roughly 32% of teenagers qualify as night owls. On the other hand, as they age, adults see their internal clocks naturally shift earlier. By age 60, over 63% of people identify as morning types, and only about 7% remain night owls. 

As far as gender differences are concerned, large-scale genetic studies note that more women (48.4%) identify as morning people compared to men (39.7%). Our natural sleep timing (what’s called a chronotype) is largely dictated by our biology and internal clock rather than a conscious choice. 

Now that you’ve read this, you no longer have any excuse for not treating your fellow workers, friends and family according to the requirements of their chronotypes!