Hearing loss is one of the most common conditions of aging, affecting nearly two-thirds of older adults over the age of 70, but it’s not just a matter of diminished hearing. Hearing loss can contribute to poor psychosocial outcomes for patients including loneliness, depression, and social isolation. New research also shows that hearing loss is linked to a higher risk of cognitive decline and dementia. In fact, the 2024 Lancet Commission on Dementia Prevention, Intervention, and Care identified hearing loss as one of 14 modifiable risk factors for dementia. According to the commission, treating hearing loss could prevent up to 7% of dementia cases globally, making it one of the most impactful areas for potential prevention. This raises the question of whether use of hearing aids in people with hearing loss can reduce or mitigate this increased dementia risk.

To help us understand these connections and the latest research in this area, we are joined today by Dr. Alison Huang, an epidemiologist and Senior Research Associate from the Johns Hopkins Cochlear Center for Hearing and Public Health. Her research studies the impact of sensory loss on cognitive and mental health in older adults. Dr. Huang was an author of the Aging and Cognitive Health Evaluation in Elders (ACHIEVE) study, a large, multicenter randomized controlled trial that tested whether treating hearing loss in older adults could help slow cognitive decline published in the Lancet.

Alison Huang, PhD, MPH

Link to article:

Lin FR, Pike JR, Albert MS, Arnold M, Burgard S, Chisolm T, Couper D, Deal JA, Goman AM, Glynn NW, Gmelin T, Gravens-Mueller L, Hayden KM, Huang AR, Knopman D, Mitchell CM, Mosley T, Pankow JS, Reed NS, Sanchez V, Schrack JA, Windham BG, Coresh J; ACHIEVE Collaborative Research Group. Hearing intervention versus health education control to reduce cognitive decline in older adults with hearing loss in the USA (ACHIEVE): a multicentre, randomised controlled trial. Lancet. 2023 Sep 2;402(10404):786-797. doi: 10.1016/S0140-6736(23)01406-X. Epub 2023 Jul 18. PMID: 37478886; PMCID: PMC10529382.

The transcript for this episode can be found here.

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In this episode Matt and Lauren will speak with Dr. Marcia Pescador Jimenez, an Assistant Professor in the Department of Epidemiology at Boston University whose research focuses on understanding the relationship between exposure to green space and health outcomes (including hypertension and cognitive measures). Emerging research has shown that midlife risk factors may delay or even prevent the onset of dementia later in life - among these include physical activity and social interaction. It’s not a stretch to imagine how a person’s environment may impact behaviors such as physical activity. For instance, there are places that lack sidewalks and parks that make exercising exceedingly difficult. Among environmental epidemiologists, there is growing interest in understanding how the built and natural environment influence our behaviors that, in turn, influence our health.

We encourage you to listen to this episode while on a walk outside!

Dr. Marcia Pescador Jimenez Faculty Profile

Article Referenced in Podcast:

Pescador Jimenez M, Wagner M, Laden F, Hart JE, Grodstein F, James P. Midlife Residential Greenness and Late-Life Cognitive Decline among Nurses' Health Study Participants. Environ Health Perspect. 2024 Jul;132(7):77003. doi: 10.1289/EHP13588. Epub 2024 Jul 17. PMID: 39016600; PMCID: PMC11253812.

Nurses’ Health Study

The social engagement scale that was referenced in the podcast is called the “Berkman-Syme Social Network Index”

The transcript for this episode can be found here.

You can subscribe to Minding Memory on Apple Podcasts, Spotify, or wherever you listen to podcasts.

Hosted on Acast. See acast.com/privacy for more information.

While memory loss is generally thought of as the hallmark of dementia, behavioral and psychological symptoms of dementia like agitation, aggression, anxiety, and hallucinations are nearly universal, affecting almost all patients with advanced dementia. These behavioral disturbances are often the trigger for nursing home placement, and they can be highly distressing for both patients and their care partners. In today’s episode, Matt and Lauren speak with Dr. Ellen McCreedy, a researcher from the Brown School of Public Health who has conducted a study of personalized music intervention called Music & Memory for people living with dementia in nursing homes. Dr. McCreedy is a gerontologist and health services researcher who focuses on evaluation of non-pharmacologic interventions for managing behavioral disturbances of people living with dementia.

Ellen McCreedy, PhD, MPH Faculty Profile

Articles from Episode:

Sisti A, Gutman R, Mor V, Dionne L, Rudolph JL, Baier RR, McCreedy EM. Using Structured Observations to Evaluate the Effects of a Personalized Music Intervention on Agitated Behaviors and Mood in Nursing Home Residents With Dementia: Results From an Embedded, Pragmatic Randomized Controlled Trial. Am J Geriatr Psychiatry. 2024 Mar;32(3):300-311. doi: 10.1016/j.jagp.2023.10.016. Epub 2023 Nov 2. PMID: 37973488; PMCID: PMC10922136.

McCreedy EM, Gutman R, Baier R, Rudolph JL, Thomas KS, Dvorchak F, Uth R, Ogarek J, Mor V. Measuring the effects of a personalized music intervention on agitated behaviors among nursing home residents with dementia: design features for cluster-randomized adaptive trial. Trials. 2021 Oct 7;22(1):681. doi: 10.1186/s13063-021-05620-y. PMID: 34620193; PMCID: PMC8496617.

The transcript for this episode can be found here.

You can subscribe to Minding Memory on Apple Podcasts, Spotify, or wherever you listen to podcasts.

Hosted on Acast. See acast.com/privacy for more information.