Motor racing legend Sir Jackie Stewart has emotionally recounted the moment his wife forgot who he was, as his charity funds a new dementia blood test.
The three-time F1 champion said Lady Stewart inquired "where's Jackie?" while sitting with him.
He said the changes he had seen in his wife were the reason he had founded Race Against Dementia, which is funding a new blood test trial developed by the University of Cambridge.
The study hopes to detect signs of frontotemporal dementia decades before it develops.
Lady Stewart was diagnosed with the same type of dementia in 2014, and Sir Jackie said the behaviour and language changes he had witnessed were "horrendous".
