For many people around the world, turning on the heating during winter is expensive. For some, it's just too expensive, and the result is that they end up struggling through the winter in freezing-cold homes that should certainly be heated.
It is often argued that there are simple solutions to this problem, such as wearing more layers. In reality, however, this is not sufficient. Indeed, keeping a cold home can have serious consequences for both physical and mental health.
Curious? Check out this gallery to find out more.