Depression 'makes us biologically older'

Depression can make us physically older by speeding up the ageing process in our cells, according to a study.

Lab tests showed cells looked biologically older in people who were severely depressed or who had been in the past.

These visible differences in a measure of cell ageing called telomere length couldn't be explained by other factors, such as whether a person smoked.

The findings, in more than 2,000 people, appear in Molecular Psychiatry.

Experts already know that people with major depression are at increased risk of age-related diseases such as cancer, diabetes, obesity and heart disease.