Durham gym burns calories for costs

A gym in County Durham has become the first in the country to use its exercise machines to create power to run the building's lighting system.

Full Report: From energy to electricity in Durham gym

A gym in County Durham has become the first in the country to produce electricity from its members' workouts.

The leisure centre in Willington has invested in ten new exercise machines, which harness energy as they are used.

It is hoped that the machines could save enough electricity to pay to light the whole leisure centre.

You can watch the full report from Lucy Taylor below.