Research suggests that lifestyle choices, particularly walking and a nutritious diet, may play a significant role in delaying the onset of Alzheimer’s disease. A study published in Molecular Neurodegeneration in June 2025 indicated that up to 45% of dementia risk could be attributed to modifiable factors, with exercise and diet being key contributors. These habits are linked to increased levels of brain-derived neurotrophic factor (BDNF), a protein that supports neuroplasticity, which is essential for memory and cognitive function.
According to Dr. Alexander Zubkov, a neurologist specializing in neurodegenerative disorders, engaging in regular walking and maintaining a healthy diet can enhance BDNF levels. Specifically, walking at moderate to high intensities has been shown to boost BDNF significantly, particularly immediately after exercise. While there is no definitive number of steps required, many studies suggest aiming for about 7,000 to 8,000 steps daily to optimize brain health.
Diet also plays a crucial role in brain health. The MIND diet, a combination of the Mediterranean and DASH diets, emphasizes foods like whole grains, leafy greens, nuts, and berries. Dr. Zubkov recommends incorporating omega-3 fatty acids, antioxidants, and polyphenols into one’s diet to support cognitive function.
In addition to walking and diet, engaging in aerobic and resistance exercises, ensuring quality sleep, and managing stress are beneficial practices for increasing BDNF. While further research is needed to fully understand the impact of various dietary factors, current evidence supports the idea that simple lifestyle changes can have significant effects on delaying Alzheimer’s and enhancing overall brain health.