Irish presenter Kathryn Thomas is turning her attention to one of the biggest modern obsessions, ageing, in a thought-provoking new RTÉ documentary.

In Young Forever: The Death of Ageing?, a new two-part series airing this April on RTÉ One and RTÉ Player, Thomas dives into the booming global industry built around longevity, youthfulness, and the desire to turn back the clock.

From high-tech longevity clinics to cutting-edge aesthetic treatments, the documentary explores how scientists, entrepreneurs, and even tech billionaires are investing vast sums in the pursuit of longer — and younger — lives.

But beyond the billion-dollar industry lies a more personal story, one that Thomas is uniquely positioned to tell.

After more than 20 years in the public eye, she knows first-hand the pressure that comes with ageing on screen.

In today’s social media-driven world, that scrutiny has intensified, no longer reserved for celebrities, but extending to everyday life where appearance is constantly under the microscope.

Throughout the series, Thomas meets people adopting a wide range of approaches to slow down ageing, from simple lifestyle changes to experimental scientific interventions.

She also speaks with leading experts working to uncover the biological mysteries behind why we age in the first place.

At its core, Young Forever: The Death of Ageing? questions whether society’s relationship with ageing has fundamentally shifted.

As the line between public and private continues to blur, growing older is increasingly framed not as a natural process, but as something to resist — or even “fix”.

The series ultimately asks a bold question: are we on the brink of redefining ageing altogether?

Young Forever: The Death of Ageing? airs on April 13 and April 20 at 9.35pm on RTÉ One and RTÉ Player.