By Joey Parker, MSN, APRN, PMHNP-BC, jparker@parkerwellnesstn.com
One of the most common concerns families express is, “My mother just doesn’t seem like herself anymore.” After more than 20 years of evaluating older adults with memory loss, behavioral changes, and altered cognition, I have found that families are often surprised to learn how many different conditions can affect thinking and functioning later in life. They may notice increasing forgetfulness, confusion, irritability, poor decision-making, trouble finding words, or changes in personality. In many cases, families immediately fear dementia. While dementia is certainly one possible explanation, it is far from the only cause of cognitive changes in older adults.
The reality is that altered cognition can result from many different medical, neurological, psychiatric, and medication-related conditions. Some causes are progressive and long-term, while others may be temporary or even reversible with proper treatment.
Dementia itself is not a single disease. It is a broad term used to describe cognitive decline severe enough to interfere with daily functioning. Alzheimer’s disease is the most well-known form of dementia, but there are several others, including vascular dementia, Lewy body dementia, and frontotemporal dementia.
However, memory loss and confusion are not always caused by dementia. Depression and anxiety can significantly impair concentration, memory, and motivation, particularly in older adults. Sleep disorders, chronic stress, grief, dehydration, infections, thyroid problems, vitamin deficiencies, uncontrolled diabetes, strokes, medication side effects, and even hearing loss can all contribute to cognitive symptoms.
Medication-related cognitive impairment is especially common and frequently overlooked. Certain sleep medications, anxiety medications, pain medications, antihistamines, and combinations of multiple prescriptions can worsen confusion, increase fall risk, and impair short-term memory. Older adults are often more sensitive to medication effects than younger individuals.
Another important distinction is whether cognitive changes developed gradually or suddenly. Dementia typically progresses slowly over time, whereas sudden confusion may suggest delirium, infection, medication reactions, metabolic problems, or another acute medical issue that requires prompt evaluation.
This is why cognitive evaluations are so important. I have seen many situations where families assumed dementia was the only possible explanation when the underlying cause turned out to be more complex and sometimes even reversible. A thorough assessment can help determine whether someone is experiencing normal aging, mild cognitive impairment, dementia, depression, medication-related problems, or another medical condition entirely. Early evaluation also allows families to identify safety concerns, establish a treatment plan, and make informed decisions before problems escalate.
Families should not ignore cognitive or behavioral changes simply because someone is “getting older.” Changes in memory, judgment, personality, or daily functioning deserve attention and careful assessment. In many cases, earlier identification and treatment can improve quality of life, reduce caregiver stress, and help individuals maintain independence longer.
Joey Parker, Psychiatric-Mental Health Nurse Practitioner and owner of Parker Wellness, has more than 30 years of mental health experience, providing evaluations and treatment including inpatient and outpatient (including in-home services). He can be reached at 865-567-9517 or jparker@parkerwellnesstn.com.