Signs of Alzheimer’s disease could be detectable in the blood as early as middle age, a study has found, raising hopes that routine tests could eventually help identify those at risk of the condition long before memory problems appear.
A large Finnish project, which is part of the long-term ‘Cardiovascular Risk in Young Finns’ study, found elevated levels of brain-related biomarkers in adults aged 41 to 56, suggesting that biological changes linked to Alzheimer’s begin decades before symptoms usually arise.
