Uncontrollable Risk Factors
Age – Age is the primary risk factor for dementia but dementia is not a predictable consequence of aging. Further, dementia does not exclusively affect older people. Young onset dementia (defined as the onset of symptoms before the age of 65 years) accounts for up to 9% of cases (WHO). Brain-healthy lifestyle behaviors can considerably reduce the risk of cognitive impairment and dementia.
Genetics – Genetic factors are inherited from a parent to child and cannot be controlled. Scientists have found that there are several genes related to Alzheimer’s disease, but it’s important to remember that having a certain gene does not necessarily predetermine our fate. Genes determine our risk for a disease, but lifestyle and environment can either trigger or suppress those risks. For example, one study showed that our chances for developing Alzheimer’s drops 17% for every year of education we have beyond high school (Rately, 2008)
“Starting when you are young is best, but it’s never too late.”
To summarize, taking control of medical conditions like diabetes, hypertension, and high cholesterol in addition to prioritizing regular physical activity and a healthy diet, staying social, learning new things, and getting adequate sleep will help the brain stay healthy for years to come.