Walking and cycling even in the most polluted of cities is still better for you than staying indoors, a study from researchers at the University of Cambridge has shown.
Regular exercise – walking, running, cycling – can slash people's risk of developing serious illnesses such as heart disease, diabetes, cancer and strokes, according to the National Health Service.
There are worries, however, regarding the risks people exercising in towns and cities face from air pollution.
A recent joint report from the Royal College of Paediatrics and Child Health and the Royal College of Physicians linked outdoor air exposure to around 40,000 deaths in the U.K. every year.
As well as being connected to thousands of deaths, the report stated that exposure to outdoor air pollution costs the U.K. economy over £20 billion ($28.2 billion) every year.