that was doctor leena rasmussen. you have been warned.es at 11:30. hello. it was quite a mixed bag of whether through the day on saturday. some of us had quite a lot of dry weather was in in the south there was a lot of rain lingering through the day. this was the picture as the sunset earlier on this evening in lancashire. big showers a cloud around. most of the showers in the north and north—west attending to ease away. through the rest of the night the main player in the weather is this waving weather front pushing its way gradually further northwards. that is already bringing rain across southern england. it will be affecting the midlands, much of wales as well through the rest of the night. we have clear skies further north across scotland and northern ireland. the odd roadshow around. we have the clear skies in the north you mightjust see a little bit of mist and fog around as well. also a touch of frost across rural parts of eastern scotland. further south, we have the cloud and the rain, we are looking a double—figure through the

doctor leena rasmussen led the research and spoke to the bbc earlier. we measured it in three ways. measured the average speed at which people are walking, the normal pace. and we measured the maximum speed without running and we measured a dual—task gait speed, meaning people had to recite alternating letters of the alphabet while walking. and each of these three measures are equally associated with accelerating ageing measures we have been investigating. we found in this study that people among the as—year—olds that we studied that the ones... the 20% slowest walkers had multiple signs of accelerated ageing, compared to the fastest walkers in the study. there is definitely differences, and also across age and stuff but if you look at a population where everybody is the same age, you'll see that the ones who are slower, they will probably have the fastest ageing within that group. but there is obviously differences across age groups as well. the kenyan athlete eliud kipchoge has become the first person to run a marathon in under two hours. the 34—year—old covered the 26.2 mile cour