A retired teacher in Pompano Beach recently told her family she started doing crossword puzzles at breakfast. Not because anyone told her to, but because she noticed she felt sharper on the days she did. That small observation captures something researchers have been saying for years: the daily habits we practice have a powerful effect on how our brains age.
During Brain Awareness Week—and every week—it's worth taking a closer look at what science tells us about cognitive wellness. The good news is that protecting your brain doesn't require drastic changes. Whether you live in Fort Lauderdale, Coconut Creek, or anywhere in Broward County, these six evidence-based habits can help keep your mind engaged and resilient well into your 70s, 80s, and beyond.
When we think about brain health, food isn't always the first thing that comes to mind. But research from Rush University Medical Center found that older adults who followed the MIND diet—a combination of Mediterranean and heart-healthy eating patterns—reduced their risk of Alzheimer's disease by up to 53 percent.
What does that look like in practice?
Leafy greens at least six times a week (spinach, kale, mixed salad greens)
Berries twice a week—blueberries and strawberries are especially rich in flavonoids
Fish once a week for omega-3 fatty acids
Nuts, beans, and whole grains as regular staples
Olive oil as your primary cooking fat
You don't have to overhaul your diet overnight. Even small shifts, like swapping chips for a handful of walnuts, or adding a side salad to dinner, add up over time. For more on nutrition in your 70s and 80s, explore our guide to eating healthy as you age.
Exercise isn't only about staying physically fit. When you move your body, you increase blood flow to the brain, which supports the growth of new neural connections, a process scientists call neuroplasticity.
Studies have found that even moderate physical activity, like brisk walking for 150 minutes per week, significantly improved cognitive function in adults over 65. The type of exercise matters less than the consistency.
Here in South Florida, the warm climate makes it easier to stay active year-round. Walking along the Pompano Beach boardwalk, swimming laps, joining a water aerobics class, or practicing tai chi in a local park are all excellent options. The key is finding something enjoyable enough that it becomes routine, not a chore.
Get more ideas in our handbook to staying active and vibrant.
Your brain responds to challenge the way muscles respond to exercise—by getting stronger. Activities that require concentration, problem-solving, or learning something new create and strengthen neural pathways.
Effective cognitive activities include:
Learning a new language or instrument (even at a beginner level)
Strategy games like chess, bridge, or Sudoku
Reading and discussing books with a group
Taking a class—many libraries and community centers in Deerfield Beach, Coral Springs, and Boca Raton offer free programs for older adults
Creative pursuits like painting, writing, or photography
The most important factor? Novelty. Doing the same puzzle every day eventually becomes automatic. Mixing up your activities forces your brain to adapt and grow.
Loneliness isn't just an emotional experience, It's a cognitive risk factor. A landmark study from the National Academies of Sciences, Engineering, and Medicine found that social isolation among older adults is associated with a 50 percent increased risk of dementia.
The opposite is also true. Meaningful social interaction—conversation, shared activities, collaboration—stimulates multiple areas of the brain at once. Talking with a friend at a café in Lighthouse Point or Lauderdale-by-the-Sea does more for your brain than you might realize.
Practical ways to stay connected:
Volunteer with a local organization in your area
Join a club based on a shared interest—gardening, cooking, books, or cards
Schedule regular calls or visits with family and friends
Participate in group fitness or art classes where interaction happens naturally
Looking for purposeful ways to stay engaged? Our guide to recreation in retirement is full of ideas.
During deep sleep, your brain activates its glymphatic system which is essentially a cleaning crew that flushes out toxins, including beta-amyloid proteins associated with Alzheimer's disease. Poor or insufficient sleep disrupts this process.
The National Sleep Foundation recommends seven to eight hours of sleep per night for older adults. Yet many older adults struggle with sleep quality due to medication side effects, pain, or disrupted routines.
A few strategies that can help:
Keep a consistent sleep schedule, even on weekends
Limit screen time for at least an hour before bed
Keep your bedroom cool and dark—South Florida's humidity can make this challenging, so a good air conditioner and blackout curtains go a long way
Avoid caffeine after noon and heavy meals close to bedtime
Talk to your doctor if sleep problems persist—there may be an underlying cause worth addressing
Chronic stress floods the brain with cortisol, a hormone that, over time, can damage the hippocampus, which is the region responsible for memory and learning. Managing stress isn't a luxury; it's a protective strategy.
What works varies from person to person, but research consistently supports these approaches:
Mindfulness meditation, even for just 10 minutes a day
Deep breathing exercises that activate the parasympathetic nervous system
Spending time in nature—a walk through a park in Oakland Park, Tamarac, or Margate counts
Journaling to process thoughts and emotions
Setting boundaries around news consumption and obligations that feel overwhelming
A 2021 study in JAMA Neurology found that older adults who practiced regular stress-reduction techniques showed slower rates of cognitive decline compared to those who did not.
Brain is less about perfection and more about consistency. You don't need to adopt all six habits at once. Pick one that feels manageable, build it into your routine, and add another when you're ready.
What matters is that you're thinking about it. The fact that you're reading this article means you're already taking a proactive step toward cognitive wellness for yourself or someone you love. Download our visual guide to keeping an older mind sharp for more practical strategies!