The immediate effects of a head injury can actually include dementia symptoms, according to a recent article in the Mayo Clinic newsletter.
The term "sundowning" refers to a state of confusion near the end of the afternoon, typically starting around 4:00 pm and lasting into the night. Sundowning isn't a disease, but a symptom that often occurs in people with dementia, such as Alzheimer's Disease. The cause is still unknown.
Many people already know that the right kind of diet and exercise can help you avoid this disease, bur researchers at the University of South Florida have found a new source of protection: your morning coffee.