It's not the electricity cuts that Yulia Hailunas struggles with most after the Russian airstrikes. It's the fact that it's so bitterly cold inside her own home.

Like so many Ukrainians, she's had no central heating since Russia launched a wave of targeted attacks on the power grid in January.

So Yulia now lives in a long, quilted coat and hat in her flat, and rests her feet on a saucepan-full of hot water to keep them from freezing. If that's not enough, she lifts weights for 10 minutes to get warm.

When the weather outside is above zero, it's just about bearable. But later this weekend, the temperature in Dnipro is forecast to plunge below -20C.

In Kyiv and elsewhere, it could be colder still.