Sigimisrütmide
Sigimisrütmide, a term derived from Estonian, refers to the rhythmic patterns of biological processes within living organisms. These rhythms are often endogenous, meaning they are generated internally by the organism, but can be influenced by external environmental cues. The most well-known example is the circadian rhythm, a roughly 24-hour cycle that regulates sleep-wake patterns, hormone release, and body temperature.
Beyond circadian rhythms, other biological rhythms exist with different frequencies. Ultradian rhythms occur more frequently than