Kudos to their unwavering spirit.
Instead of focusing on the negative or trying to ignore it and stay in denial the best way to move forward is to accept what's inevitable and focus on the positives.
Aging is a part of life and no one can escape this transition. A child grows into an adult and with every passing day age takes a toll on each one of us. It takes many years to earn the kind of experience an elderly person has accumulated over his life span.