A national survey has revealed one in ten pensioners are forced to stay in bed longer to keep warm following price rises by the 'Big Six' and other energy suppliers.
One in eight participants in the Saga survey also suggested they would stop using certain parts of their home altogether in order to keep bills down.
Shadow minister for public health, Luciana Berger, said : "This survey shows the desperate lengths older people are going to in order to keep warm in David Cameron's Britain.
"We have already seen a 40% spike in the number of people suffering from hypothermia on this Government's watch. Ministers urgently need to act to help people struggling during the winter.
"Too many older and vulnerable people lose their lives every year due to living in homes that are too cold."
Press Association conducted the survey on behalf of Saga. 12,000 people over the age of 50 responded to it in total, with 8,000 of the participants retired.
Other information revealed in the survey included 64% of participants saying they were forced to wear extra layers of clothes to stay warm in the winter and a staggering 84% of participants said they were particularly worried about the general rising costs of fuel and energy bills.
An Energy UK spokesman, said: "No one should have to resort to staying in bed longer or only using parts of their home to keep warm, your energy company wants to help, you just need to get in touch.
"Energy companies have offers, discounts, schemes and trust funds to help their most vulnerable customers and can advise on finding the best deal to suit your personal circumstances."
Read more about energy advice for pensioners.
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