Just as there is no magic pill to prevent cognitive decline, no single almighty brain food can ensure a sharp brain as you age. Nutritionists emphasize that the most important strategy is to follow a healthy dietary pattern that includes a lot of fruits, vegetables, legumes, and whole grains. Try to get protein from plant sources and fish and choose healthy fats, such as olive oil or canola, rather than saturated fats.
Research shows that the best brain foods are the same ones that protect your heart and blood vessels, including the following:
Physical activity can help you think, learn, problem-solve, and enjoy an emotional balance. It can improve memory and reduce anxiety or depression.
Regular physical activity can also reduce your risk of cognitive decline, including dementia. One study found that cognitive decline is almost twice as common among adults who are inactive compared to those who are active.
Regular physical activity can help you sleep and feel better, reduce the risk of some common cancers, and add years to your life.
You don’t have to be a fitness guru to reap the benefits. No matter your age or fitness level, any amount of physical activity can help.
For the most benefit, adults need at least 150 minutes of moderate-intensity physical activity weekly or 75 minutes of vigorous-intensity activity. It doesn’t have to happen in one stretch. For example, moderate-intensity activity could be broken into 22 minutes daily, 30 minutes a day on 5 days a week, or smaller amounts that add up.
All adults also need muscle-strengthening activities two or more days a week. And adults 65 and older need activities to improve balance as well.
Here are ways to be more physically active:
Remember that some activity is better than none, and every little bit counts. Even some chores such as raking and bagging leaves, using a lawn mower, or vacuuming can help you get active.
Exercise has many known benefits, and regular physical activity also benefits the brain. Multiple research studies show that physical active people are less likely to experience a decline in their mental function and have a lower risk of developing Alzheimer’s disease.
These benefits result from increased blood flow to your brain during exercise. It also tends to counter some of the natural reduction in brain connections that occur during aging, reversing some of the problems.
Aim to exercise several times per week for 30 to 60 minutes. You can walk, swim, play tennis or do any other moderate aerobic activity that increases your heart rate.
Sleep plays an important role in your brain health. Some theories state that sleep helps clear abnormal proteins in your brain and consolidates memories, which boosts your overall memory and brain health.
Aim for seven to eight consecutive hours of sleep per night, not fragmented sleep of two- or three-hour increments. Consecutive sleep gives your brain the time to consolidate and store your memories effectively. Sleep apnea harms your brain’s health and could be why you may struggle to get consecutive hours of sleep. Talk with your health care team if you or a loved one suspects you have sleep apnea.
Your diet plays a large role in your brain health. Consider following a Mediterranean diet, which emphasizes plant-based foods, whole grains, fish and healthy fats, such as olive oil. It incorporates less red meat and salt than a typical American diet.
Studies show people who closely follow a Mediterranean diet are less likely to have Alzheimer’s disease than people who don’t follow the diet. Further research is needed to determine which parts of the diet help brain function the most. However, we know that omega fatty acids found in extra-virgin olive oil and other healthy fats are vital for your cells to function correctly, appear to decrease your risk of coronary artery disease, increase mental focus and slow cognitive decline in older adults.
Your brain is similar to a muscle — you need to use it or lose it. There are many things that you can do to keep your brain in shape, such as doing crossword puzzles or Sudoku, reading, playing cards or putting together a jigsaw puzzle. Consider it cross-training your brain. Incorporate different types of activities to increase the effectiveness.
Most health care teams don’t recommend the paid brain-training programs available. These programs often overpromise results or focus on memorization skills that aren’t useful in everyday life. Your brain can get just as good of a workout through reading or challenging yourself with puzzles. Finally, don’t watch too much TV, as that is a passive activity and does little to stimulate your brain.
The health of your arteries and veins is important to your heart health but it is also critical for brain health. Get your blood pressure, blood sugar and cholesterol checked regularly and take steps to keep your numbers within a normal range.
Increase your physical activity, eat a Mediterranean diet and decrease your sodium consumption to lower blood pressure and cholesterol values. Finally, tobacco and alcohol use are impactful on brain health as well, so only drink alcohol in moderation and don’t smoke. Moderate drinking is defined as up to one drink per day for women and up to two drinks per day for men.
Sleep is essential for brain health because it allows the brain to clear out toxins, consolidate memories, and repair neural connections. During deep sleep, the brain strengthens learning, improves focus, and supports emotional balance by regulating key brain areas like the amygdala and prefrontal cortex. Lack of sleep can impair memory, attention, and mood, and over time, increase the risk of neurological disorders such as Alzheimer’s and stroke. Getting 7–9 hours of quality sleep each night is one of the best ways to protect and maintain a healthy brain.
Here are some tips on getting high quality sleep: