Dementia is not an inevitable part of ageing, and certain healthy habits may help reduce the risk of cognitive decline later in life. Learning how to avoid dementia in old age involves protecting your heart and brain, staying physically and mentally active, maintaining social connections and managing conditions such as high blood pressure and diabetes. No method can guarantee prevention, but healthy choices can support better brain health.
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Stay Physically Active
Regular physical activity supports heart health, circulation, mobility and overall brain health. Walking, cycling, swimming, dancing and other suitable activities can help keep you active as you get older.
Aim for regular activity that matches your fitness level and health needs.
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Control Your Blood Pressure
High blood pressure, particularly during midlife, is associated with a higher risk of later cognitive decline and dementia. Have your blood pressure checked regularly and follow medical advice if it is high.
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Eat a Balanced Diet
A healthy diet can support both cardiovascular and brain health. Include vegetables, fruits, whole grains, beans, healthy sources of protein and unsaturated fats.
Try to limit excessive amounts of highly processed foods, added sugars and unhealthy fats.
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Manage Diabetes
High blood sugar can damage blood vessels and contribute to health problems that affect the brain. If you have diabetes, follow your treatment plan and monitor your blood sugar as recommended.
Healthy eating, physical activity and prescribed medication can help with diabetes management.
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Maintain a Healthy Weight
Being overweight or obese can increase the risk of several conditions associated with dementia, including diabetes and high blood pressure. Maintaining a healthy weight through balanced nutrition and regular activity can support long-term health.
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Do Not Smoke
Smoking can damage blood vessels and increase the risk of conditions that affect the brain. If you smoke, consider getting professional support to quit.
Avoiding tobacco can benefit your brain, heart and overall health.
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Limit Harmful Alcohol Use
Excessive alcohol consumption can negatively affect the brain and increase the risk of several health conditions. Limiting alcohol or avoiding it altogether can support healthier ageing.
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Keep Your Mind Active
Give your brain opportunities to learn and solve problems. Reading, learning a new skill, doing puzzles, playing games, studying a language or taking up a new hobby can provide mental stimulation.
Choose activities that are enjoyable and appropriately challenging.
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Stay Socially Connected
Regular interaction with family, friends, neighbours and community groups can help reduce social isolation and support cognitive and emotional wellbeing.
Consider joining a club, volunteering or participating in activities that allow you to interact with other people.
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Protect Your Hearing
Hearing loss has been associated with increased dementia risk. If you notice difficulty hearing conversations, television or other sounds, have your hearing assessed.
If hearing aids or another treatment is recommended, use them consistently.
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Get Enough Quality Sleep
Poor sleep is associated with several health conditions that can affect cognitive health. Maintain a regular sleep schedule and create a comfortable environment that supports restful sleep.
If you regularly have severe sleep problems or breathing interruptions during sleep, discuss them with a healthcare professional.
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Protect Your Head From Injury
Traumatic brain injuries can affect long-term brain health. Wear appropriate protective equipment during activities where head injuries are possible and take precautions to reduce falls as you get older.
Keeping your home well lit and free of unnecessary obstacles can also help reduce fall risks.
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Manage Cholesterol
High cholesterol is linked with cardiovascular problems that can affect blood vessels supplying the brain. Have your cholesterol checked when recommended and follow professional advice about diet, physical activity and medication.
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Look After Your Mental Health
Depression and prolonged social isolation can affect cognitive wellbeing. Maintain social connections, stay active and seek professional support if you experience persistent sadness, loss of interest or other concerning changes in mood.
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Have Regular Health Check-Ups
Regular medical check-ups can help identify and manage conditions such as high blood pressure, diabetes, high cholesterol and hearing or vision problems.
Managing these conditions early can support healthier ageing and may help reduce dementia risk.
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