The health benefits of sunlight: Can vitamin D help beat covid-19?

Been spending a bit too much time indoors?  You’re not the only one. Many of us now spend up to 90 per cent of our lives indoors and our retinas are bombarded with artificial light late into the evening.  In this week’s Science with Sam, we take a look at the evidence for the health benefits of sunlight, its importance for your mood and some simple tips to maximise your exposure.