by Peter Andres
Evolution has conditioned human beings to flourish in daylight. This is borne out by many involuntary functions we are unable to influence, such as the automatic adjustment of our eyes to brightness, distance and colour, our circadian rhythm of day and night, and, not least, the production of vitamin D through exposure of our skin to sunlight, an essential process for the regulation of bone growth and calcium levels in blood. Furthermore, the uplifting spirit that we all […]