To encourage them to want to have a healthy lifestyle to all those elderly people, because if they feel loved helps them in their day to day. Feel affection for the elderly is very helpful for quality of life, both of us like them. And it's no use if we feel able to show a simple gesture of complicity and love.
Usually, when you're doing older, loss of physical and mental faculties diminish considerably, so it is very difficult for them to realize all, so sometimes in most cases, our elders fall in depressions and disincentives to not be loved.
Some studies have failed to show that a lot of elderly, suffer from some type of motivation in life by not being loved. And they deserve a grain of our time so that they can be ones at the end of the day they have witnessed in our lives, both their children and grandchildren, and they have always given everything for us. So bring them costs nothing these last details of kindness and gratitude.