<
https://theconversation.com/how-light-helped-shape-our-skin-colour-eyes-and-curly-hair-237240>
"For most of our evolutionary history, human activity has been linked to
daylight. Technology has liberated us from these ancient sleep-wake cycles, but
there is evidence sunlight has left and continues to leave its mark.
Not only do we still tend to be awake in the daytime and sleep at night, we can
thank light for many other aspects of our biology.
Light may have driven our ancestors to walk upright on two legs. Light helps
explain the evolution of our skin colour, why some of us have curly hair, and
even the size of our eyes.
As we’ll explore in future articles in this series, light helps shape our mood,
our immune system, how our gut works, and much more. Light can make us sick,
tell us why we’re sick, then treat us.
Million of years of evolutionary history means humans are still very much
creatures of the light."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
