of which should put an end to ‘no sex’ complaints.Top tip Convince your partner to start running, too“IT’S RAINING OUTSIDE”Mass-participation events such as the Flora London Marathon, Race for Life and the Nike 10K lead to a seasonal upturn in the number

In the future, we'll be able to run for ever. Octogenarians will record PBs thanks to organ cloning and advanced cryogenic suspension. Speedy nonagenarians, bored with clocking six-minute miles at the London Marathon, will apply for places at ultras

the age of 18 are advised against marathon running. Dr Stephen Rice, a Professor of Paediatrics from New Jersey, emphasises that children are not small adults. While children's anatomy and physiology are developing, they aren't fully mature, so