The scheme aims to reduce the health problems caused by tobacco smoking.

London South Bank University is conducting a £1.7 million research trial aiming to help homeless people quit smoking by providing e-cigarettes.

The e-cigarette starter kits, which usually cost around £25 will be provided for free to people at half of participating centres.

In addition to London, the study will take place in homeless centres across Scotland, Wales and the South East of England.

Why is the study so important?

Prof Caitlin Notley, from the University of East Anglia’s Norwich Medical School said:

“We know that around 70% of people who are homeless smoke tobacco – this is far higher than the UK average of 14.1%.

“We also know that e-cigarettes are the most popular method of quitting smoking, with some studies suggesting they are more helpful aids than nicotine gum or patches and much less harmful than smoking tobacco.

“Electronic cigarettes mimic the experience of cigarette smoking because they are hand-held and generate a smoke-like vapour when used.

“They can be an attractive option for helping people switch from smoking, even if they have tried and failed in the past.”