During Alzheimer’s and Brain Awareness Month, Aetna® is helping Miami-Dade County and South Florida residents understand how everyday lifestyle choices may be among the most powerful tools for protecting long-term brain health
The science is clear, and it is more encouraging than many people realize. While Alzheimer’s disease affects more than 6 million Americans and Florida consistently ranks among the states with the highest rates of dementia-related conditions, research increasingly shows that a meaningful portion of Alzheimer’s risk may be influenced by the daily choices we make around food, movement, and sleep. During Alzheimer’s and Brain Awareness Month, community awareness efforts across Miami-Dade County and South Florida are helping residents understand that lifestyle is not a secondary factor in brain health — for many people, it may be the most important one. Aetna, a trusted health and wellness partner serving the Miami-Dade community, is proud to support that public education effort by connecting residents with the preventive care resources and wellness tools they need to take action.
What the Research Says About Lifestyle and Alzheimer’s Risk
A landmark 2020 report from the Lancet Commission on Dementia Prevention found that approximately 40 percent of dementia cases worldwide could be linked to modifiable risk factors — including physical inactivity, obesity, excessive alcohol use, smoking, depression, and social isolation. That finding has reshaped how public health professionals approach brain health education, shifting the conversation from inevitability to prevention. Conditions such as high blood pressure, type 2 diabetes, and cardiovascular disease, all of which are heavily shaped by nutrition, exercise, and sleep habits, are among the most significant risk factors for cognitive decline and Alzheimer’s disease.
Nutrition is one of the most studied and consistently supported lifestyle factors. Diets like the Mediterranean and MIND diets — rich in leafy greens, vegetables, berries, whole grains, fish, nuts, and healthy fats like olive oil, while limiting red meat, processed foods, and refined sugars — have been linked in multiple large-scale studies to slower cognitive decline and meaningfully reduced Alzheimer’s risk. Researchers believe the anti-inflammatory and antioxidant properties of these dietary patterns play a direct role in protecting brain cells over time. For South Florida residents navigating a food environment that includes abundant processed food options, even gradual shifts toward whole, nutrient-dense foods can represent a meaningful investment in long-term brain health. Aetna members can access nutrition counseling and wellness coaching resources through the Aetna member portal to support those changes with professional guidance.
Physical activity may carry the most robust evidence of any lifestyle factor tied to Alzheimer’s risk reduction. Regular exercise improves cardiovascular function, increases blood flow to the brain, reduces inflammation, and stimulates the production of brain-derived neurotrophic factor — a protein researchers describe as essential for the growth and maintenance of brain cells. A 2022 study published in Neurology found that higher physical activity levels were associated with larger brain volume and stronger cognitive performance in older adults, even after controlling for genetics and other risk factors. Healthcare professionals recommend at least 150 minutes of moderate aerobic activity per week, and research shows that even adults who begin exercising later in life experience meaningful cognitive benefits. Aetna members are encouraged to speak with their primary care provider — at their annual wellness visit, typically covered at no additional cost — about developing a physical activity plan that is safe and sustainable for them.
Sleep is perhaps the most underappreciated pillar of brain health. During deep sleep, the brain’s glymphatic system activates to clear metabolic waste, including amyloid-beta and tau proteins — the same toxic proteins that accumulate in the brains of people with Alzheimer’s disease. Research published in Nature Aging found that consistently sleeping fewer than six hours per night in midlife was associated with a significantly higher risk of developing dementia later in life. Sleep apnea, a common and frequently undiagnosed condition, has also been linked to accelerated cognitive decline and elevated Alzheimer’s risk. Aetna members who have concerns about sleep quality or suspect a sleep disorder are encouraged to speak with their provider, as diagnostic and treatment services may be covered under their health plan. Readers can also explore related coverage in the Calle Ocho News Health & Wellness section for more on sleep health and brain aging across South Florida.
How Miami-Dade Residents Can Turn Awareness Into Action with Aetna
Understanding the research is the first step. Taking action is what makes a difference — and Aetna is committed to supporting every member of the Miami-Dade community in doing exactly that. During Alzheimer’s and Brain Awareness Month, Aetna is actively encouraging members to use their covered preventive care benefits, connect with in-network providers, and explore the wellness education tools available through the Aetna member portal. Annual wellness visits — typically covered at no additional cost — give members the opportunity to discuss nutrition, physical activity, sleep health, stress management, and cognitive wellness with their healthcare provider in a single, structured conversation.
Chronic stress and untreated depression are also important lifestyle factors tied to brain health. Prolonged stress triggers sustained cortisol release, which over time has been shown to damage the hippocampus, the region of the brain central to memory formation. Untreated depression has been linked in research to both elevated dementia risk and, in some individuals, early cognitive decline. Aetna members have access to behavioral health resources, including counseling services, mental health provider referrals, and digital wellness tools through the member portal. If you or someone you care about is managing persistent stress, anxiety, or depression, reaching out for professional support is one of the most meaningful steps you can take for long-term brain health.
Social connection is another lifestyle factor that is often overlooked but strongly supported by research. People with active social networks and regular meaningful engagement have consistently shown lower rates of cognitive decline and better cognitive function as they age. South Florida’s vibrant community life — from cultural organizations and faith communities to recreational programs and local events — offers Miami-Dade County residents real opportunities to stay engaged. Community wellness initiatives tied to Alzheimer’s awareness throughout the region are also helping expand public education and connect families with caregiver support resources. For more on those programs, readers can explore Calle Ocho News coverage of Alzheimer’s awareness and healthy aging initiatives across Miami-Dade County, and visit the Calle Ocho News Health & Wellness category for ongoing regional healthcare reporting. Contact Pressnet Corp. for advertising and partnership opportunities.