- Counseling Psychology
- Research
Lin Studies Link Between Chronotype and Mortality in Older Adults
Apr 13, 2026
Zhuozhi Lin recently published research looking at the "biological clock" (chronotype) of middle-aged and older adults to see if being a "night owl" vs. an "early bird" correlates with lifespan. Published in the Journal of Sleep Research, Lin, along with colleagues Matthew J. Reid, Darlynn M. Rojo-Wissar and Adam P. Spira, followed 2,261 participants and recorded 650 deaths during the study. A statistically significant link between chronotype and mortality was found in two of the three age groups studied.