Psychological decline refers to a gradual deterioration in mental functions, including memory, reasoning, and emotional stability. This decline can be caused by various factors such as aging, Alzheimer's disease, or other forms of dementia. Individuals may experience difficulties in daily activities, social interactions, and decision-making. Symptoms of psychological decline can include forgetfulness, confusion, and mood changes. Early detection is crucial for managing the condition effectively. Treatment options may involve therapy, medication, and lifestyle changes to help maintain cognitive function and improve quality of life for those affected.