People tends to have some behavioral and physical changes as they grow old. It affects many aspects of their life, thus resulting to miscommunication.
Since senior is prone to having mood swings, having effective communication with elderly lets you cope up and understand them. Once there is a slight problem in communicating and interacting with them, this is when you start complicating the situation. Learn how to communicate with seniors with these methods: http://www.infolongtermcare.org/how-to-avoid-miscommunication-with-care-recipients/