The Importance of Light in Metabolism in Man and Animal: Summary

  • Fritz Hollwich
Conference paper
Part of the Topics in Environmental Physiology and Medicine book series (TEPHY)


When we speak of the eye we generally think of its function as a camera whose sole task is to transmit to man the form, color, and brightness of the environment. The second and equally important function of the eye as a receptor for extravisual photo-stimuli is still generally unknown even today. The eye uses light not only as the medium of vision; light entering the eye regulates and stimulates numerous autonomic, i.e., unconscious metabolic and hormonal processes such as sugar balance, water balance, blood count, sexual function and much more, as has been discussed in detail in previous chapters.


Natural Light Artificial Light Normal Light High Protein Intake Blind Person 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag New York Inc. 1979

Authors and Affiliations

  • Fritz Hollwich
    • 1
  1. 1.University of Muenster, West GermanyMünchen 40West Germany

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