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.
Dementia is a loss of brain function that occurs with certain diseases. It affects memory, thinking, language, judgment, and behavior. Dementia usually occurs in older age. It is rare in people under age 60. The risk of dementia increases as a person gets older. Most types of dementia are nonreversible (degenerative). Nonreversible means the changes in the brain that are causing the dementia cannot be stopped or turned back. Alzheimer disease is the most common type of dementia. Another common type of dementia is vascular dementia. It is caused by many small strokes. Lewy body disease is a common cause of dementia in the elderly. People with this condition have abnormal protein structures in certain areas of the brain.