Sunlight

With the nation staying indoors to save lives, many of us won't be getting much vitamin D from sunlight. Here's what you need to know.
Winter puts enormous pressure on the NHS as common mild infections spread rapidly and demand for healthcare soars.
A Norwegian town deprived of sunlight because the shadows of surrounding mountains has erected giant mirrors to bathe its
The bottom line (no pun intended) is that we, as a nation, sit down way too much. We're just as guilty as the next person
We love a good photography competition at HuffPost UK - especially when the images capture our national shivers so perfectly
A charity that deals with winter-related depression says it has been inundated with inquiries during the appalling weather