To be effective, the spermicide must be placed deep in the vagina, close to the cervix. Creams, gels, and foams are squirted into the vagina using an applicator. Other types of spermicides include vaginal contraceptive film (VCF), a thin sheet placed in the back of vagina by hand, and vaginal suppositories.
Causes of Alzheimer's disease. Alzheimer's disease is caused by parts of the brain wasting away (atrophy), which damages the structure of the brain and how it works.
Alzheimer's disease is the most common cause. Stroke is the second most common cause of dementia. Dementia caused by stroke is called vascular dementia. Some causes of dementia can be reversed with treatment, but most cannot. Causes that cannot be reversed. Common causes of dementia that cannot be reversed are: Parkinson's disease. Dementia is common in people with this condition. Dementia with Lewy bodies. It can cause short-term memory loss. Frontotemporal dementia, a group of diseases that includes Pick's disease. Severe head injury that caused a loss of consciousness.