Blood test 'predicts Alzheimer's'
10 March 2014 Last updated at 07:52 GMT
A blood test looking at the levels of certain fats could predict the onset of Alzheimer's disease, according to US researchers.
The findings, published in Nature Medicine, predicted with 90% accuracy the risk of the disease coming on in the next three years.
The research will now be tested in larger clinical trials.
Dr Iracema Leroi, a dementia specialist from the University of Manchester, explained the significance of the research.