How Does Pet Therapy Benefit People With Dementia?

Pet therapy (also called animal-assisted therapy) for people with Alzheimer's and other kinds of dementia has received increased attention over the last several years. One reason is because of the emphasis on making facilities such as nursing homes and assisted living centers more homelike.

Woman out walking two dogs in a forest
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Dr. William Thomas proposed a theory along those lines several years ago that made others reconsider how nursing homes were designed. He said that residents in facilities often suffered from feeling bored, lonely and helpless. He also said that bringing in children, plants and animals were some of the ways to combat those issues. These ideas led him to develop what he called the "Eden Alternative," a way of invigorating nursing home life by empowering staff and emphasizing the presence of plants, animals, and children.

This movement, along with others, increased the presence of animals in nursing homes. But, do they help? Even though not everyone is a lover of animals, the answer in one word is: Yes. Overwhelmingly, research supports the benefits of animals with people who have dementia.

Benefits of Pet Therapy

There have been hundreds of research articles published on the benefits of pet therapy for people with dementia. Here are a few of those benefits:

Improved Mood

Multiple studies have cited benefits such as improved mood and more social interaction—notable benefits since people with dementia are at risk for developing depression, which can further compromise their functioning and quality of life.

One such study evaluated animal-assisted therapy at an adult daycare center for older adults with dementia. The results indicated that involving the people in activities with dogs decreased their feelings of anxiety and sadness and increased physical activity and positive emotions.

Calming Effect

In a study published in 2008, psychologists observed a calming effect following pet therapy in a small sample of nursing home residents. Other studies have shown that animal-assisted therapy yields significantly lower blood pressure levels.

Decreased Behavioral Problems

Another study measured the effects of a resident dog, as opposed to a visiting dog, in a nursing home. The researchers found that after the addition of the dog to the Alzheimer's unit, the residents' challenging behaviors significantly decreased during the day.

Other research found that agitation and aggression were significantly reduced in people with Alzheimer's disease who were exposed to pet therapy.

Improved Nutrition

One study placed aquariums in a facility and found that residents' food intake and weight increased. This decreased the need for nutritional supplements, which lowered costs for the facility.

Increased Social Interaction

Other research found that animal-assisted therapy was correlated with an increase in social interaction with others in those with dementia.

Increased Physical Activity

Pet therapy has also been associated with increased physical activity. There are many benefits of physical activity in dementia.

Types of Pet Therapy

Animal-assisted therapy runs the gamut and can include cats, bird aviaries, trained dogs and fish aquariums. Some nursing homes have animals that live at the facility, while others have people who bring animals in to visit regularly. Some communities also have programs where they'll bring in animals from the local zoo and include an educational component.

Although most of the research on pet therapy has been conducted in facilities, it can also be used if someone with dementia is living at home. The presence of a dog or cat at home, for example, can provide some of the same benefits as noted above.

Finally, remember that animals used for pet therapy should be up-to-date on their shots, well-trained, and monitored to ensure everyone's safety, as well as to minimize the exposure for people who have allergies or simply don't care to interact with them.

A Word From Verywell

While pet therapy may take some additional effort to provide, its benefits can be significant. An animal's unconditional love and acceptance, as well as the therapeutic physical touch from pet contact, can improve quality of life, with or without dementia.

8 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
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  2. Brownie S, Neeleman P, Noakes-meyer C. Establishing the Eden Alternative™ in Australia and New Zealand. Contemp Nurse. 2011;37(2):222-4. doi:10.5172/conu.2011.37.2.222

  3. Beetz A, Uvnäs-moberg K, Julius H, Kotrschal K. Psychosocial and psychophysiological effects of human-animal interactions: the possible role of oxytocin. Front Psychol. 2012;3:234. doi:10.3389/fpsyg.2012.00234

  4. Marx MS, Cohen-mansfield J, Regier NG, Dakheel-ali M, Srihari A, Thein K. The impact of different dog-related stimuli on engagement of persons with dementia. Am J Alzheimers Dis Other Demen. 2010;25(1):37-45. doi:10.1177/1533317508326976

  5. Edwards NE, Beck AM. The influence of aquariums on weight in individuals with dementia. Alzheimer Dis Assoc Disord. 2013;27(4):379-83. doi:10.1097/WAD.0b013e3182769b34

  6. Richeson NE. Effects of animal-assisted therapy on agitated behaviors and social interactions of older adults with dementia. Am J Alzheimers Dis Other Demen. 2003;18(6):353-8. doi:10.1177/153331750301800610

  7. Yakimicki ML, Edwards NE, Richards E, Beck AM. Animal-Assisted Intervention and Dementia: A Systematic Review. Clin Nurs Res. 2019;28(1):9-29. doi:10.1177/1054773818756987

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Additional Reading

By Esther Heerema, MSW
Esther Heerema, MSW, shares practical tips gained from working with hundreds of people whose lives are touched by Alzheimer's disease and other kinds of dementia.