Remember with aging we supposed to get wisdom, so read the bible to find out how to get wisdom, and to be happy with the Lord, for we all get older. Getting older is a gift from God who has allowed us to reach our old age. How many go into eternity without reaching even their twenties. It is up to us to complain and be miserable, or to be grateful for our life. Won't you rather be a survivor, than be a victim?
Lord teach this person to go exercise and walk. To eat a healthy diet so their feet won't get swollen and painful, this alone will make them feel better, and happy. Also to be grateful for the life you have given them. I pray in Jesus' name amen.