I never used to be cold. In fact I rarely turned the heat on at home. Ok, so I live in California, and it doesn't get that cold here really I've had the heat on for weeks now and I'm still cold!

I wear cozy sweaters and wool socks to work and sit here frozen like an iceberg! When my thin co-workers complain about being warm and I'm freezing, I know something strange has happened!

Does anyone know why this happens?