Anyone else read this piece on the BBC website about the effects of cold on the body:
www.bbc.co.uk/news/health-63602501
"Staying warm: What does an unheated room do to your body?"
I was finding it mildly interesting:
"Science tells us that 18 degrees is the tipping point..."
"my fingers turn white and they feel cold"
until I read this line:
"This would happen even more quickly if I were a different gender"
So that's the answer to big heating bills then. I've just told DH that between the months of Oct-Apr I'll self-ID as male and then I won't get cold so quickly 
FFS. And they're pretending it's a scientific article!