The division of people into "owls" and "larks" is likely to change now. It turned out that there are much more chronotypes in terms of the time of activity than we are accustomed to counting. According to the results of a new study, Russian and Belgian scientists immediately presented 6 types of people with different biorhythms, according to Science Direct.
The chronotype is the individual characteristics of the circadian rhythms of the human body, a kind of internal clock that regulates the physiological functions of the body, determining the time of sleep and wakefulness.
If earlier such studies were concentrated mainly around two types of people - "larks" and "owls", then the authors of a new scientific work propose to expand the classification to six species. They are morning (larks), evening (owls), highly active type, daytime sleepy type, daytime active type, and moderately active type. It is known that the morning chronotypes at the beginning of the day are characterized by high activity, which gradually decreases towards the evening. Representatives of the evening type, on the contrary, feel sleepy in the morning, and in the evening they develop violent mental and physical activity.
To analyze six patterns of activity, scientists led by Dmitry Sveshnikov, Associate Professor of the Department of Normal Physiology of the Medical Institute of the RUDN University, conducted a study with the participation of 2283 volunteers, mainly from among students. By performing standard tests, they had to determine their level of sleepiness and alertness during the day and understand which of the proposed types was closer to them.
As a result, 95% of the participants (2,176 people) were able to choose one of the chronotypes, and 5% of the respondents were still undecided. At the same time, only 13% and 24% of the volunteers attributed themselves strictly to the morning and evening types. The rest of the participants chose four other types. The evening type of activity among the participants in the experiment turned out to be predominant.