Chair exercise class at the Louis and Anne Green Memory and Wellness Center at Florida Atlantic University, Boca Raton. Photo courtesy of the Louis and Anne Green Memory and Wellness Center.

Dementia has long been a diagnosis dreaded by patients and families, as there is no cure. Despite decades of effort, scientists have had little success in developing effective treatments or methods to prevent or slow down the characteristic brain deterioration.

Nearly 6 million people in the United States, including about 14% of the population ages 71 years and older, are afflicted. Dementias, including Alzheimer disease, are among the most common causes of disability and dependency in older adults and projections of the actual number of Americans with dementia—as much as 13.8 million by 2060—suggest rapid growth as the population ages.

Some progress, however, has been made in understanding symptoms and progression of dementias. Recent studies have also shed light on potentially modifiable risk factors, identified new methods of diagnosis, and explored ways to slow disease progression and improve patients’ quality of life. […]