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Medicine LibreTexts

8: Energy

  • Page ID
    6813
  • [ "article:topic-guide", "authorname:hawaiinutrition" ]

    Energy is essential to life. Normal function of the human body requires a constant input and output of energy to maintain life. Various chemical components of food provide the input of energy to the body. The chemical breakdown of those chemicals provides the energy needed to carry out thousands of body functions that allow the body to perform daily functions and tasks such as breathing, walking up a flight of steps, and studying for a test.

    Thumbnauil: Usain Bolt winning the 100 m final 2008 Olympics. Image used with permission (CC BY 2.0; PhotoBobil).