I wondered what people on here made of this latest bit of research reported today on the BBC. https://www.bbc.co.uk/news/health-50015982 I can't see that anyone else has posted this, but I may be wrong? Apologies if this is posted on another thread somewhere. Here is another link as I now see it is widely reported in the press. https://neurosciencenews.com/slow-walker-brain-aging-15062/ Here is the actual study https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2752818 At 45 my walking speed was pretty fast. Of course it's not so great now I have a problem with my stamina - call it ME/CFS or what you will, though I am not severe, and if anything have improved somewhat. I have underactive thyroid so of course that is one aspect that affects stamina, quite apart from if there is another labelled differently. I am also 67 but my husband at 73 is a lot faster than I am and can walk distances and up hills with ease. What does this mean for those with ME/CFS then? Do we have a sign of faster ageing, and does it confirm that our brains are ageing too? I have seen many discussions over the years as to whether we have dementia or what, if our brains don't work properly with this condition. At this stage they seem to be possibly linking it back to childhood development of the brain though, so maybe not relevant if the walking speed has changed due to illness in midlife. How would they know what was what though?