Dementia is the loss of cognitive functioning — thinking, remembering, and reasoning — to such an extent that it interferes with a person's daily life and activities. Some people with dementia cannot control their emotions, and their personalities may change. Dementia ranges in severity from the mildest stage, when it is just beginning to affect a person's functioning, to the most severe stage, when the person must depend completely on others for basic activities of daily living, such as feeding oneself.

Dementia affects millions of people and is more common as people grow older (about one-third of all people age 85 or older may have some form of dementia) but it is not a normal part of aging. Many people live into their 90s and beyond without any signs of dementia. There are several different forms of dementia, including Alzheimer’s disease, which is the most common.

What are the signs and symptoms of dementia?

The signs and symptoms can vary depending on the type and may include:

• Experiencing memory loss, poor judgment, and confusion
• Difficulty speaking, understanding and expressing thoughts, or reading and writing
• Wandering and getting lost in a familiar neighborhood
• Trouble handling money responsibly and paying bills
• Repeating questions
• Using unusual words to refer to familiar objects
• Taking longer to complete normal daily tasks
• Losing interest in normal daily activities or events
• Hallucinating or experiencing delusions or paranoia
• Acting impulsively
• Not caring about other people’s feelings
• Losing balance and problems with movement
• People with intellectual and developmental disabilities can also develop dementia as they age, and in these cases, recognizing their symptoms can be particularly difficult. It’s important to consider a person’s current abilities and to monitor for changes over time that could signal dementia.

What causes dementia?

Dementia is the result of changes in certain brain regions that cause neurons (nerve cells) and their connections to stop working properly. Researchers have connected changes in the brain to certain forms of dementia and are investigating why these changes happen in some people but not others. For a small number of people, rare genetic variants that cause dementia have been identified.

Although we don’t yet know for certain what, if anything, can prevent dementia, in general, leading a healthy lifestyle may help reduce risk factors.

Resources: National Institute on Aging
https://www.nia.nih.gov/health/alzheimers-and-dementia/what-dementia-symptoms-types-and-diagnosis 

Date of Input: 10/09/2024 | Updated: 22/10/2024 | aslamiah