Blog
27 August 2025
Dementia Month | Risk Factors
There are different types of risk factors for dementia, including medical, lifestyle and environmental factors. It is possible to avoid some risk factors, while others cannot be controlled.
A person’s ‘risk’ of developing dementia is the chance that they will get it at some point in their life. Everyone has a chance of developing dementia, but some people have a greater chance than others. These people are at ‘higher risk’. In this article we take a look at some of the risk factors, however it’s important to remember there are steps you can take to help reduce your risk of developing Alzheimer’s Disease or other Dementias.
Age as a risk factor for dementia
The greatest risk factor for developing Alzheimer’s disease is age. As you get older, your risk increases, especially after age 85. When a person develops dementia before the age of 65, this is known as ‘young-onset dementia.’
Genetics as risk factor for dementia
There are certain genetics or genes that can place a person at higher risk for some ageing brain diseases. However, the majority of these genes do not guarantee that you will develop the disease.
Family history as a risk factor for dementia
A family history does not mean an individual will develop Alzheimer’s. However, individuals who have or had a first-degree relative (a parent or sibling) with the disease are at a higher risk.
Lifestyle or modifiable risk factors
Lifestyle or modifiable risk factors are often areas where we can have control and influence. These are things that can help to reduce our risk for cognitive impairment over the course of life.
Health related risk factors
- Blood pressure control
- Cardiovascular health management
- Tobacco prevention, stop smoking
- Diabetes prevention and management
- Obesity prevention and control
- Injury prevention
- Addressing hearing loss
Additional risks for caregivers
- Increased stress and strain due to role
- Demands of caregiving limit time for self-care
- Healthcare gets put on back burner
- More likely to feel isolated as little time for socialising<
- Impacts to sleep, exercise, eating habits
Being aware of these factors and making even small changes to your lifestyle can make a difference over the long term.