Dementia is a disorder characterized by a decline in mental capabilities in a person. It is primarily caused by Alzheimer's disease but can also be caused by damage to the brain from an injury or a stroke. The cells of the brain fail to communicate with each other in dementia. People suffering from dementia have difficulties in taking part in regular activities as their mental functioning is impaired.
The major symptoms of dementia are problems in recalling, ineffective communication, inability to concentrate and impaired reasoning abilities. It may also affect the short-term memory of a person when he/she may be unable to keep track of his/her belongings. Dementia can be progressive where the symptoms gradually increase with age.
Some early symptoms of dementia are-
1. Mood changes - Excessive mood swings along with changes in personality are very common symptoms of dementia. For instance- a reserved person suddenly becoming very outgoing is a commonly observed change in cases of dementia.
2. Problems in completing routine tasks - If a person suddenly starts to face problems in doing routine work such as maintaining simple accounts and paying bills then it can early signs of dementia.