Some human examples of circannual rhythms have been found in the past, but we tend to be less affected by the seasons than other creatures.

School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, United Kingdom ...

A series of rodent experiments showed that even with abundant food and water, personal space is essential to prevent societal collapse, but Universe 25's relevance to humans remains disputed. Immune ...

Circadian rhythms are physical, mental, and behavioral changes that follow a 24-hour cycle and respond to light and dark, while circannual rhythms involve biological or psychological processes ...

The specific seasonal phases of the hormones were used to suggest a model for a circannual clock in humans and animals that can keep track of the seasons, similar in spirit to the circadian clock ...

"Indeed, it is possible that entrainment of the circadian clock by the day-length (photoperiod) may contribute to a circannual rhythm as well," Drs. Williams and Zipes wrote.

A retrospective cohort study of more than 200 patients with medically refractory focal epilepsy that examined seizure patterns identified a “high prevalence” of plural seizure cycles ...

Circadian and circannual cycles of behavior regulate many aspects of welfare including metabolism, breeding, and behavioral interactions. In this study, we aim to demonstrate how systematically ...