Research shows Kiwis fear eventual mental decline as they age just as much, if not more, than cancer.

Every brain changes and develops - and eventually declines as we age - but there are ways to slow deterioration and associated conditions down.

Naturopath and wellness expert Erin O'Hara says a healthy diet rich in Omega-3, plenty of exercise, and an active social life can reduce the impact of cognitive decline.

LISTEN ABOVE