Hmmm maybe a certain Geordie lass I know who reads this could help answer this 
It does make me chuckle when you’re watching a Newcastle game on the telly, and they pan round the ground and you see quite a few geordies with no shirts on! Only problem being they have a few extra layers to keep them warm in way of a slightly large gut Taken from the BBC Website
Scientists want to discover if Geordies feel the cold or have extra thick skin to cope with low temperatures.
Geordies are renowned for braving freezing conditions clad only in their glad-rags during a night out.
Now a survey is to be carried out by staff at the Centre of Life in Newcastle to see how they are able to wear so little.
The online questions include ‘what would persuade you to wear a coat on a night out?’
The investigation is part of the Newcastle ScienceFest, which will feature a 10-day programme of events to celebrate creativity and innovation.
Linda Conlon, chief executive of the Centre for Life and chair of the Newcastle ScienceFest steering group, said: “To kick off the festival, we decided to investigate the reputation Geordies have for not wearing a coat in even the worst weather.
“Is there a possible genetic reason for our bravery or is it simply because we like to show off our finery on a night out?”
Heh heh! That’s great.
I remember when I lived up there, so many t-shirts out on icy cold February nights. They’re either brave or stupid.
Yeah think I’ve got some of them Genes in me from my Geordie relatives