Study: Two or more diet drinks a day increase the risk of stroke, heart disease and the chances of  an early death. Photograph: Anthony Devlin/PA

Two or more diet drinks a day increase the risk of stroke, heart disease and the likelihood of an early death, research suggests. A large study invol(...)

The most long-lived Irish person was Kathleen Snavely (above) from Co Clare,  who died in the US aged 113 years in 2015.  Photograph: Syracuse University Archives

Humankind may have hit a wall when it comes to our capacity to grow older. Scientists now believe that there may be a natural limit to our lifespan an(...)

Prof John Foxe: believes incoming signals get combined early on as they are processed in the brain – much earlier than had been previously suspected. Photograph: Jason Torres

When you listen to someone talking in a noisy room, you hear what they say. But you most likely look at them too – seeing their mouth move coul(...)