Previous thinking was that it was more time spent indoors woth central heating recirculating air and things like that but i never really bought into that idea.

Previous thinking was that it was more time spent indoors woth central heating recirculating air and things like that but i never really bought into that idea. Doesnt really work for more temperate climates that still see lots of outdoors activity in winter, eg. Australia. The one difference is during winter, your basically go to work in the dark and arrive home in the dark as well.