It seems we have evolved to need and enjoy light. As well as being an important source of vitamin D, it enables sight and provides a natural daily rhythm. There is some evidence that the amount of natural light we are exposed to improves our sleep patterns and therefore our mental health.
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Answer:
It seems we have evolved to need and enjoy light. As well as being an important source of vitamin D, it enables sight and provides a natural daily rhythm. There is some evidence that the amount of natural light we are exposed to improves our sleep patterns and therefore our mental health.