The experts studied 904 volunteers, now all aged 45, from birth. They gave them brain scans and mental and physical tests.
Slow walkers were more likely to have had a low IQ at three and suffer from worse health.
Their bodies and brains looked and functioned older than brisk strollers.
GPs are calling for a £25 charge on appointments in a bid to cut demand
I COULD HAVE DIED
Killer flesh eating bug left mum ‘smelling like a corpse’ after C-section
Common heartburn drugs recalled over cancer-causing toxin contamination fears
HANGING BY A THREAD
Teen had to catch her jaw after it was torn off in horse riding smash
Fab Four reunite for 1st ever TV advert tonight in mental health campaign
Teen left with gaping hole after infected ingrown hair ‘burrowed into his spine’
A maximum speed of 7.8mph, or 3.5m per second, indicated good health and less than 2.2mph, or 1m per second, poor health.
Prof Terrie Moffitt of Duke University in North Carolina, US, said of slow walkers: “It’s probable they will die younger and develop illnesses, such as dementia, if they do not turn their life around.”
She urged people to time their fastest possible walk to and from the shops and to get healthy.
Big-hearted plumber, James Anderson, 52, hailed a hero for refusing to take payment from sick and elderly customers