https://www.youtube.com/watch?v=_kZVbE_coSA
More than 2 chronotypes?
The Morningness-Eveningness Questionnaire does not only distinguish between larks and owls; there is also a third option on this scale, namely the intermediate types, people who do not fully qualify either as morning or evening individuals. The intermediate types, in fact, might be more widespread than either larks or owls.
There are more than just morning and evening people. A new study has also identified ‘afternoon people’ and ‘nappers.’
“I’m a night owl and a morning bird. Generally, I’m fine both ends. I basically just don’t get that much sleep,” one person told Medical News Today.
Although most people fall in between the extremes of “morningness” and “eveningness,” as a society, we don’t have any terms to describe these other chronotypes. Or, more correctly, we didn’t have any words until now.
This year, a team of researchers from Belgium and Russia studied intermediate types in more detail, characterized them, and gave them names based on those characteristics.
The new study paper — published online ahead of print in the journal Personality and Individual Differences — identifies two additional chronotypes: “afternoon types” and “nappers.”
“[M]orning types,” the researchers write in their paper, are the “least sleepy in the morning and most sleepy in the beginning of the night while the opposite trend [is associated with] evening types.”
In addition, they explain, “[t]hose who might be named ‘afternoon types’ [are] least sleepy after the middle of the day and […] more sleepy not only in the early morning but also at midnight, whereas those who might be named ‘napper types’ [follow an] op-posite pattern characterized by ‘afternoon dip’ in combination with lower sleepiness levels both prior and after this dip.”