Sophie GoddardJul 24, 2026 – 5.00amIf quizzed on your biggest health fear, chances are that losing sharpness when it comes to brain function is up there. In fact, half of British adults say they fear developing dementia more than any other health condition.But while around one in five of us mistakenly believes dementia is simply an inevitable part of growing older, there’s plenty we can do to protect our brain health and give ourselves the best chance of staying “with it” well into later life.The Telegraph LondonSubscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles