An expert trainer says this is the one move she recommends to all her clients to boost longevity, and it's simpler than you'd expect

Woman dressed in beige top and leggings performing a forward lunge holding a light dumbbell in each hand. she's on a brown wooden floor with a cream sofa with wooden frame and shelving behind her. .

Gone are the days when gym sessions were just about changing the way you look. More and more people are now aware that exercise is one of the most effective things you can do for your long-term health.

Rachael Sacerdoti, a personal trainer and founder of the coaching platform It's So Simple is an advocate for adopting strength training if you want to age well.