Scientists pinpoint brain’s 'early warning sign' of Parkinson’s or dementia
The new research found this sign could appear eight years before diagnosis.

The new research found this sign could appear eight years before diagnosis.
Busted driving 100mph, the police subsequently made a £2.5m discovery.
EastEnders icon Danny Dyer fumed "I have got a lot on my plate" in a new interview.
Mercury, Venus, Jupiter, Saturn, Uranus and Neptune will align in the night sky shortly after sunset, with some visible to the naked eye.
Brits could be set for a major shortage of fresh fruit and vegetables after the heavy rains in Spain destroyed crops.
The Reform UK leader hit out at a question from GB News during his live press conference.
Celebrity Big Brother star Chantelle Houghton has opened up on her 'rude' encounter with Good Morning Britain presenter Richard Madeley
The retailer confirmed that the megastore will be closing in just a few weeks' time.
An expert said the shocking statistics were a 'badge of dishonour'.
Over 40 fire engines are at the scene.
The Met Office is urging households to prepare for heavy downpours.
The account is designed for people who want to set aside money every month and earn a boosted return.
The Prince of Wales has said he is 'delighted' that his Earthshot Prize will be hosted in Mumbai.
The Epstein files could put further strain on the relationship between the Wales family and Princesses Beatrice and Eugenie.
Drivers are being told snow will hit 40 areas of the UK before Friday, with advice on how to best cope with the disruption.
One of Vladimir Putin's allies has issued a threat to Britain and its allies amid the seizure of ships.
Savers are being urged to take advantage of tax allowances as the end of the financial year looms.
Clubcard shoppers can cash in on a limited-time deal.
CNN issued a major breaking news alert ahead of the USA's upcoming midterm elections.
There is a natural way to stop weeds from taking over your lawn or any part of a garden, but it must be done before early March to be effective.
The 'world's best beach' is picture-perfect with sugar-white sand beaches and azure waters - it looks as though it's directly from a Windows screensaver
The A-list star's half-brother, Donald McAvoy, pleaded guilty to assault with a blade at HMP Saughton in Edinburgh during visiting time.
Wuthering Heights is out in cinema and it's already received mixed reviews. Now one man who knew nothing about the story shared his verdict.
ANALYSIS: The Reform UK leader has named the four big personalities who would hold some of the most important jobs in Government. Here is what makes them tick.
This Morning host Sam Thompson has admitted he was left "white as a sheet" after receiving criticism from the boss of the ITV show about his presenting skills