Sadness is common among the aged for a multitude of reasons: loss of independence, career, health, a loved one, mobility, etc. But depression is not normal. Losing all hope and joy is not age-inclusive. When this happens, as it sometimes might, do not withdraw into isolation. Instead, take positive steps and talk to someone. Do not let this mental and emotional state slide go untreated.
Your feelings are very important! Make sure you take care of them. Do not let stress and negative emotions get in the way. Cultivate a good balance between what you perceive as responsibilities and the things you enjoy. The important thing is to ultimately feel good about yourself and the things you do.
Getting in touch with your senses is a good first step in that direction. Here are some ways you can do so.