Letters to the Spalding Guardian editor â January 21, 2021 Up the miles for hearts Weâve all felt the strain of 2020 and with restrictions in place across England itâs important that looking after our physical and mental health remains a priority in 2021. Thatâs why Iâm encouraging people to stay active throughout the winter months and improve their heart health by taking on the British Heart Foundationâs (BHF) 30-day virtual cycling challenge, MyCycle. The BHF found that signing up to a challenge has helped a quarter of people get fitter in the past. Completing an exercise challenge, like MyCycle, can also have a positive effect on your mental health as it helps to increase your level of endorphins, which are a natural mood booster.