Obesity link to dementia

The NHS defines dementia as a syndrome associated with a gradual decline in brain function. Dementia is not only about memory loss, it can also affect the way you speak, think, feel and behave. It is also important to remember that dementia is not a natural part of ageing.

Alzheimer’s disease is the most common form of dementia. Each year in the UK, around 60 per cent of dementia diagnoses are Alzheimer’s. Although dementia can affect people at any age, it is rare in those under 65.

What is obesity? 

The World Health Organisation defines obesity as an abnormal or excessive accumulation of body fat that poses a health risk. A person with a body mass index (BMI) of 25 or more is considered overweight. BMI is calculated by dividing weight in kilograms by height in metres squared.

How is obesity linked to dementia? 

A recent study conducted by University College London has found that obesity is associated with a higher risk of dementia for up to 15 years after diagnosis. The findings suggest that weight management may play an important role in reducing dementia risk.

The study also reported that people who are obese in later adulthood could face a 31 per cent increased risk of dementia compared with those whose BMI is within the normal range. The risk may also be particularly higher for women than for men.

Dr Dorina Cadar from the UCL Institute of Epidemiology and Health Care emphasised the importance of monitoring both BMI and waist circumference to avoid metabolic dysregulation. She recommended maintaining a healthy weight throughout adult life by adopting balanced eating patterns, regular physical exercise and reduced alcohol consumption.

The Alzheimer’s Society has also carried out research into the relationship between obesity and dementia. Their findings suggest that being overweight can damage a specific pathway of white matter in the brain called the fornix. The fornix connects the hippocampus, a region essential for learning and memory, to other parts of the brain.

Since damage and degeneration of the hippocampus are usually early signs of Alzheimer’s disease, disruption of its connections may contribute to disease development. The health of the fornix has also been identified as a possible predictor of mild cognitive impairment in older age.

How can Cavendish Homecare help?

At Cavendish Homecare we are experts in providing dementia homecare for clients who want to remain in their own homes. When it comes to your health and well-being, choosing the right homecare package is of utmost importance and navigating this process can be overwhelming. With Cavendish Homecare by your side, you’ll have the support you need to remain safely at home while enjoying elevated health and wellbeing.

If you would like to enquire about our homecare services, contact us on, 02030085210 or email us at info@cavendishhomecare.com.

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