Alzheimer’s disease affects millions of people around the world, but its impact on women is particularly significant. Women are not only more likely to receive an Alzheimer’s diagnosis, but they are also more likely to take on caregiving responsibilities for a loved one with the disease.
Nearly two-thirds of Americans living with Alzheimer’s disease are women, and more than 12 million women either have the disease or are caring for someone who does. According to The Alzheimer’s Association, at age 45, women have a 1-in-5 lifetime risk of developing the disease, compared with 1 in 10 men. Women in their 60s are more than twice as likely to develop Alzheimer’s disease over the rest of their lives as they are to develop breast cancer.
For many years, the disparity was mostly attributed to the fact that women tend to live longer on average than men, and age is a well-known risk factor for the disease. However, research is now looking at a combination of biological, hormonal, genetic, and lifestyle factors that may impact women’s brain health and their risk of developing Alzheimer’s across their lifetimes.
As women, it is as important for us to protect our brain health as it is for us to protect our overall health. And we have to start doing this before memory problems begin. While there is currently no guaranteed way to prevent Alzheimer’s, there are steps that we can take now to support our cognitive health.
I have spent decades working in the field of brain and mind health and Alzheimer’s research. If I could have women understand one thing above all else, it is this: do not wait until memory issues become disruptive to begin thinking about your brain. The choices you make today can have a tremendous impact on your cognitive health over the rest of your life.
7 Steps to a Healthier Brain
While risk factors like age or genetics cannot be changed, there are many steps that women can take at any age that support and protect their brain health. In fact, research increasingly suggests that many of the habits that protect our heart and overall health can also help reduce our risks of cognitive decline.
Here’s where I recommend starting:
Diet: A well-balanced diet is a critical factor in reducing the risk of developing Alzheimer’s disease. Focus on nutrient-rich foods, especially those high in antioxidants, which fight oxidative stress, and omega-3 fatty acids, which support neuronal function.
Hydration: Proper hydration ensures optimal blood flow and nutrient delivery to the brain. Dehydration can decrease cerebral blood flow, impacting the brain’s ability to function efficiently. Water is also essential for the glymphatic system, which helps clear waste products from the brain. Try to drink about two liters of water per day to help maintain optimal brain health.
Exercise: Frequent exercise is believed to promote the growth and survival of brain cells, potentially mitigating the risk of developing Alzheimer’s. Additionally, research indicates that exercise contributes to the enlargement of the brain structures associated with memory and learning. Aim for at least 20-30 minutes of regular aerobic exercise most days, with dancing or other movement-learning activities sprinkled in to maximize cognitive benefits.
Sleep: Adequate, quality sleep is essential for reducing your dementia risk. During deep sleep, the brain clears toxins, including beta-amyloid. Insufficient sleep disrupts this clearance process, leading to the accumulation of harmful substances. Sleep is also integral for memory consolidation and cognitive function. Ideally, you want to get 7 to 9 hours of sleep nightly, and strategically timed naps that can refresh the brain without disrupting overnight sleep.
Socializing: Research shows that people with strong social ties are less likely to develop dementia, which highlights the profound impact of social connections on brain health and overall cognitive well-being. Maintaining social connections stimulates the brain, promoting the formation of new neural connections. Meaningful interactions with others enhance mental agility, emotional well-being, and cognitive function. It also reduces stress, which is another risk factor for dementia.
Exercise Your Brain: Stimulating your brain with puzzles, reading, or learning new skills (such as an instrument or a second language), promotes cognitive reserve, a protective factor against cognitive decline. These “workouts” stimulate the growth of new neural connections, enhancing brain plasticity and resilience. Staying mentally active leads to better memory, attention, and problem-solving skills, which all contribute to a healthier and more resilient brain.
Reduce Stress: Easier said than done, I know, but chronic stress has been linked to detrimental effects on brain health. Prolonged stress releases hormones like cortisol, which can contribute to inflammation and the accumulation of harmful proteins in the brain, such as beta-amyloid. Chronic inflammation and the increased levels of these proteins are associated with Alzheimer’s pathology. Stress also negatively impacts memory and cognitive function. Strategies like meditation, mindfulness, and regular physical activity can promote overall well-being and protect against the neurobiological changes associated with Alzheimer’s.
It is crucial to remember that increased risk does not mean inevitable cognitive decline. We are learning more every day about what influences brain health and, more importantly, the steps we can take to address some of them.
The best time to start thinking about your brain health is not when you begin forgetting names, locations, or struggling with everyday tasks. It is now. Small, consistent choices can add up over a lifetime.
Unfortunately, we cannot control every factor that determines our risk for Alzheimer’s disease. However, we can become more proactive about the ones we can control.
My hope is that more women begin to view caring for their brains the same way they view caring for their hearts, bones, or overall physical health: as an essential part of staying well throughout life.