Overview

Dementia is a broad term describing a decline in cognitive function severe enough to interfere with daily life. It affects memory, reasoning, language, and decision-making. Dementia is not a single disease but a group of conditions. It commonly occurs in older adults. The progression is usually gradual. Symptoms may worsen over time. Dementia affects independence and quality of life. Early detection allows better planning and care. Different types have varying patterns of progression. Continuous medical evaluation is important.

What Happens During Allergic Rhinitis?

Brain cells become damaged and lose their ability to communicate effectively. This disrupts memory storage and cognitive processing. Depending on the affected brain areas, changes in behavior and personality may occur. Progressive neuronal loss leads to worsening cognitive decline.

Diagnosis

Diagnosis involves cognitive testing and medical history evaluation. Brain imaging such as MRI may identify structural changes. Blood tests help rule out reversible causes. Diagnosis is based on persistent cognitive impairment.