Kate has an incredibly toned physique and strength training is known to burn more calories than cardio alone, as it builds muscle, which increases your resting metabolic rate.
This allows the Duchess to ditch restrictive diets and focus instead on fuelling her body with nutritious foods.
Exercise has long been hailed a stress reliever that can help to reduce stress and anxiety.
BarBend’s fitness experts revealed: “It also helps us to retain focus and be more present, taking time aside to forget about our everyday worries.
“People like Kate Middleton, who have high-pressured roles, can really benefit from using their exercise session as a time to de-stress.”