Researchers injected ethyl alcohol into 16 tarsometatarsal joints (lowest hock joint) of normal, sound horses. They injected 4 mL of either 70% or 95% ethyl alcohol.
For other uses, see Dementia (disambiguation). Dementia, also known as senility, is a broad category of brain diseases that cause a long term and often gradual decrease in the ability to think and remember that is great enough to affect a person's daily functioning. Other common symptoms include emotional problems, problems with language, and a decrease in motivation.
Alzheimer's and dementia basics. 1  Alzheimer's is the most common form of dementia, a general term for memory loss and other intellectual abilities serious enough to interfere with daily life. 2  Learn more: What We Know Today and Understanding Dementia.