Kronotyyppija
Kronotyyppija is a Finnish-language term used to describe a person who studies, assesses, or assigns chronotypes—the individual differences in preferred timing of sleep and activity within a 24-hour cycle. The word combines krono- (time), tyyppi (type), and -jä (agent suffix). The term is not a formal job title in the scientific community; it appears mainly in popular science discussions or informal contexts to describe someone who works with chronotype assessment.
In practice, a kronotyyppija may be a sleep researcher, clinician, or consultant who uses tools such as
Applications of kronotypy research include improving sleep health, optimizing performance, and personalizing interventions in psychiatry and
See also: chronobiology; circadian rhythm; chronotype; MEQ; MCTQ.