India, Feb. 14 -- While many are looking for a 'fountain of youth' in a bottle, 91-year-old Jill from Australia has found it in her sneakers. In a video shared by nutritionist and fitness coach Theresa Moloney on December 27, 2025, Jill revealed the rigorous - and disciplined - lifestyle that keeps her thriving in her tenth decade. Also read | Helen at 86 shares 4 balance, strength exercises that prove 'movement has no age limit'; reveals why she works out

Her secret? It's less about a magic pill and more about a relentless commitment to movement. In fact, Jill's 'average' day would be a challenge for someone half her age.

Jill's fitness regimen is built on a foundation of high-volume activity and variety: she shared that she averages 1...