You might notice your loved one pausing when they smell a favorite meal, or struggling to recognize a familiar song on the radio. 

These little changes can be heartbreaking, and they often raise a difficult question: which sense is most affected by Alzheimer’s disease? 

While memory loss is the symptom most people discuss, the senses can also be profoundly impacted. Understanding how Alzheimer’s changes the way your loved one experiences the world can help you offer comfort, connection, and care in ways that matter.

How Alzheimer’s Disease Affects the Brain and the Senses

Alzheimer’s disease is not only about memory. 

It changes the brain in many ways, damaging cells that process information and connect experiences to the senses. When these brain pathways weaken, the way a person hears, sees, tastes, smells, or touches things can change.

For example, your loved one may have trouble recognizing voices, even of people they know well. They may struggle to taste favorite foods or smell things around the home. 

Vision can also shift, not because of the eyes themselves, but because the brain is less able to interpret what the eyes see.

These changes can make daily life more challenging, but understanding what to expect can help you protect your loved one’s dignity and create a safer, more supportive environment.

Which Sense Is Most Affected by Alzheimer’s Disease?

Research indicates that the sense of smell is often the first and most severely affected. 

Families sometimes notice that their loved one stops reacting to scents they once enjoyed, such as fresh coffee or baked bread. Others may notice that their loved one can’t detect strong odors, even ones that are unpleasant or potentially dangerous.

In fact, in a long-term study of nearly 3,000 adults aged 57 to 85, researchers found that those who could not identify at least four out of five smells, namely, peppermint, fish, orange, rose, and leather, were more than twice as likely to develop dementia five years later. This illustrates the close connection between changes in the sense of smell and Alzheimer’s disease.

This loss of smell is also a serious concern. Smell helps us detect spoiled food, gas leaks, or smoke from a fire. When this sense is weakened, safety concerns grow.

How You Can Help Your Loved Ones Stay Sharp 

Losing smell can be frustrating and isolating, but there are gentle ways you can help your loved one stay engaged and connected:

• Use other senses for stimulation: Encourage activities that build on touch, sight, and hearing, such as painting, gardening, listening to music, or looking through photo albums.

• Create routines around sound and sight: Daily cues, such as favorite songs or bright colors in the home, can bring comfort and familiarity.

• Encourage safe exercise: Gentle movement like walking, stretching, or chair exercises helps keep the body and mind active.

• Offer companionship: Time spent talking, laughing, or simply being together supports emotional health and helps your loved one feel valued.

Support for Your Loved One with Alzheimer’s Disease in Dundalk and Greater Baltimore

If you think your loved one may be showing signs of Alzheimer’s disease, or if they’ve already been diagnosed, finding a safe and supportive place for them during the day can bring peace of mind. 

At Caring Hands Adult Medical Daycare, we believe mental wellness is just as important as physical health.

Our center offers a range of cognitive stimulation activities designed to enhance memory, improve focus, and promote overall brain health. 

Some of the brain-training activities we provide include:

• Computer-based memory programs that encourage recall and attention
• Word puzzles to challenge thinking and language skills
• Reminiscing activities that spark memories and inspire storytelling
• Group discussions around current events, arts, and literature

Contact us today to learn more about how we can support your loved one.