What cold weather does to the body and how to protect yourself this winter

I wrap up when outside, even when just taking the rubbish out: hat, gloves, scarf, duvet coat.

Chilblains on my toes are a problem but double socks and hot patches on the bottom of my feet do the trick. The hot patch on my chest keeps my lungs warm.

It would really hep with dressing appropriately if every Japanese business and shop didn't have the heating way too high all the time. It causes sweating when you are dressed for the cold weather outside and is just damn uncomfortable. I never wear heattech cos it's just a death sentence with the heating

Eat well, sleep well, have a proper layering system (no cotton), stay active and you've got nothing to worry about winter.

"What your body is used to compared to what it's facing is more important than a magic number," he said. "What's cold in Arizona is mild in Cleveland."

What's cold in Kyushu is mild in Hokkaido ;-