Circadian Rhythms: Circadian rhythms are 24-hour cycles that regulate sleep-wake patterns and other physiological processes. They help us adjust to the light-dark cycle of day and night.
Ultradian Rhythms: Ultradian rhythms are shorter than 24-hour cycles and include things like heartbeat, breathing rate, and hormone release.
Infradian Rhythms: Infradian rhythms are longer than 24 hours and involve menstrual cycles in females or seasonal changes in animals' reproductive behavior.