Maintaining a healthy diet, achieving sustainable weight loss, and engaging in at least 150 minutes of moderate physical activity each week may significantly reduce the risk of developing dementia, according to emerging scientific evidence.
Recent studies suggest that lifestyle changes remain among the most effective non-drug strategies for protecting brain health, particularly as populations age and dementia cases continue to rise globally.
Researchers found that individuals who follow balanced dietary patterns, maintain a healthy body weight, and meet the widely recommended target of 150 minutes of moderate-intensity exercise weekly are less likely to experience cognitive decline than those with sedentary lifestyles.
Health experts say regular physical activity improves blood circulation to the brain, reduces inflammation, enhances memory-related functions, and lowers the risk of conditions such as high blood pressure, obesity, and Type 2 diabetes—major risk factors linked to dementia.
Similarly, nutritious diets rich in vegetables, fruits, whole grains, fish, nuts, and healthy fats have been associated with better brain function and slower cognitive ageing. These eating patterns help reduce oxidative stress and inflammation, both of which are believed to contribute to neurodegenerative diseases.
Weight management also plays a crucial role. Excess body fat, particularly during middle age, has been linked to an increased likelihood of developing dementia later in life. Researchers note that losing excess weight through healthy eating and regular exercise may help lower this risk.
Medical professionals continue to recommend adults accumulate at least 150 minutes of moderate-intensity aerobic exercise each week, such as brisk walking, cycling, swimming, or dancing, alongside muscle-strengthening activities on two or more days.
Experts caution that while these lifestyle habits cannot guarantee prevention, they may substantially delay or reduce the likelihood of developing dementia when combined with adequate sleep, smoking cessation, limited alcohol consumption, and effective management of chronic conditions.
With dementia affecting millions of people worldwide, researchers are increasingly focusing on preventive strategies that individuals can adopt throughout adulthood to preserve cognitive health and improve quality of life in later years.
