The thing about extra layers or blankets or heated garments as a solution to not being able to afford to put the heating on is that it doesn't heat the air. So you're still breathing cold (possibly damp) air all the time, which if you have any kind of respiratory condition is bad, or if you're very young or very old is an extra stressor on the immune system, and if you have to dry clothes inside (which in the winter you have to do because it's too cold/rainy for them to dry outside, and if you can't afford heating you can't afford to run a tumble dryer either) then they take longer to dry if the air is cold, meaning your potential damp problem gets worse and worse. That is why the Tories are so despicable for leaving people in this situation. The choice between heating and eating isn't just about whether you feel warm enough, it's about long term health implications