Study of 420,000 Britons suggests going at speeds of at least 4mph can lower risks by up to 43%Walking at a brisker pace could lower the risk of a wide range of heart rhythm problems, according to a study.The peer-reviewed research, published in BMJ Heart, analysed data from 420,925 participants of the UK Biobank who had provided data on their walking speed. Of these, 81,956 gave more detailed data on the amount of time they spent walking at different paces. Continue reading...