U.K. Prime Minister Boris Johnson is to tell overweight Britons they need to increase their activity levels to better fight against infection from the novel coronavirus. Being obese or overweight puts people at greater risk of serious illness or death from COVID-19, experts have said this week. Cycling to work is a key way of losing weight and changing sedentary lifestyles, Johnson will advise on Monday.

Family doctors—known in the U.K. as general practitioners, or GPs—will be encouraged to prescribe cycling as a way for patients to lose weight. GP surgeries could also participate in bicycling incentive programs, with the possibility that some people could be paid to pedal.

Johnson is also expected to announce other bicycling promotions in the week beginning July 27, with further encouragement for local authorities to instal protective cycleways.