Editor's note: we are proud to bring you a weekly feature, "RVNA Health Source", written by Theresa Santoro, CEO and President of the Ridgefield Visiting Nurses Association (RVNA). RVNA Health Source will appear on several HamletHub towns every Thursday.
Researchers in a large study have found that the incidence of dementia in people aged 60 and older has dropped from 3.5 per 100 people to 2.0 per 100 over the course of the 35 year study. There are two possible explanations for this drop, neither of which has yet been proved. One is that the risk factors for cardiovascular disease, (like high blood pressure, high cholesterol and smoking) are better controlled now. The second possibility is that the trend in improved educational attainment over time may delay the symptoms of dementia. However, the number of people with dementia is not falling because the older population is growing, and that is placing a tremendous burden on society.
The memory loss and cognitive decline associated with dementia can be attributed to two major conditions. The first is Alzheimer’s Disease, which is characterized by abnormal fragments of a protein called amyloid in combination with tangles of protein known as tau. Amyloid accelerates the spread of tau throughout the brain and causes cognitive decline. The second is vascular dementia which is cause by damage to blood vessels in the brain, often a result of a lack of oxygen or damage to the brain’s white matter. Roughly half the people with memory loss have both amyloid and vascular damage. It appears that people with a more intellectual lifestyle may have a delay in experiencing symptoms of decline although their brains are going through the same changes as in the rest of the population.
Founded in 1914, RVNA is an accredited non-profit Medicare-certified home healthcare agency that also supports public health and safety, and promotes the highest quality of life. RVNA provides compassionate care to all individuals, whether young or old, through a continuum of care that encompasses health care at home and in the community. RVNA also provides home health aides and companionship through a non-medical subsidiary called HomeCare by RVNA.
Visit RVNA at www.ridgefieldvna.org