Chaos -

: Chaotic behavior is found in human heartbeats and fluid flows, showing that health often requires a balance of "ordered chaos" rather than rigid, unchanging patterns. Chaos in Human Systems and Engineering

Chaos has been a central theme in human thought for millennia. : Chaotic behavior is found in human heartbeats

: For the ancient Greeks, Khaos was the void state preceding the creation of the universe—the "gaping space" from which all matter emerged. : Chaotic behavior is found in human heartbeats

: Meteorologists use chaos theory to explain why weather forecasts are only accurate for a few days—tiny changes in atmosphere measurements lead to vastly different outcomes a week later. : Chaotic behavior is found in human heartbeats