Scientists are starting a global data study of wearable technology to see if they can detect what causes dementia ten to fifteen years before symptoms appear.
Artificial intelligence will be used to assess subtle changes across a range of patients' characteristics.
For more than ten years dementia has cast a shadow of Shaheen Larrieux's life.
In 2017 her father died after being diagnosed with vascular dementia, but far more painful is Ms Larrieux's experience with her mother's more rare frontal temporal dementia.
Ms Larrieux, a chemical engineer, gave up work to care for her mother.
Despite numerous trips to the doctor, Ms Larrieux's mother wasn't properly diagnosed for years - until 2011.
Shaheen Larrieux is among many who are hoping the new data study launched by Alzheimer's Research UK, the Turing Institute and numerous other organisations will finally lead to doctors being able to diagnose dementia well before they do physical damage.
