The problems that elderly may encounter are Physical, Social, Emotional, and Mental. Physical, as their strength deteriorates. Social, as their roles alters in the society from working to retirement. Emotional, as impending feeling of neglect may possibly arise. Mental, like forgetfulness is more common.

most likely the sagging appearance and grey hair which old people does'nt want.weakening of the immune system that's why they are like babies,prone to catch cough and cold.Memory gap..Irritability.

Poor planning for this age. Old people normally don't realize that they are getting old until they do. As if this age comes suddenly. And the worst case happens when old people don't even admit they are getting old.

mostly financial income and insurance.

arthritis, amnesia, brittle bones look it up...your parents and family should know...