Cycles are sequences of events that repeat over time. They can be found in nature, such as the water cycle, where water evaporates, condenses, and falls as precipitation. Other examples include the life cycle of plants and animals, which describes the stages from birth to reproduction and death. In addition to natural cycles, there are also cycles in human activities, like the economic cycle. This cycle includes periods of growth, peak, recession, and recovery in the economy. Understanding cycles helps us predict changes and make informed decisions in various aspects of life.