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the theory of birhythm claims that one's life is affected by rhythmic biological cycles, and seeks to make predictions regarding these cycles and the personal ease of carrying out tasks related to the cycles.
Circadian rhythms are the light-dark cycles that daily govern the rhythmic changes in the behavior of people and animals. A biological clock governs these cycles and repeated disruptions to them can cause illness.
paterns of changes in biology are the cycles of life like metamorphosis.
biogeochemical cycles
The jonerz cycle
Also known as Indian. The rights were bought by Polaris INC. And is now called Victory Cycles
biogeochemical cycles
The unit of cycles per second is called Hertz
maybe you stink or its females period cycles.
well it with water cycle and well im not sure but moon phares
Individual menstrual cycles depend on the individual person, but the moon does impact on a woman's cycles. Synthetic light and erratic sleeping patterns has stopped this, but many women practice lunaception using either moonlight or synthetic light to help regulate cycles again.
When humans age they change physically and mentally. Sleep patterns shift somewhat, along with the length of sleep cycles.