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.
The most common cause of dementia is Alzheimer's disease. Common symptoms of Alzheimer's disease and other forms of dementia include: 1  memory loss â especially problems with memory for recent events, such as forgetting messages, remembering routes or names, and asking questions repetitively.ome people may also have more than one condition â for example, they may have Alzheimer's disease and vascular dementia at the same time. While dementia has many symptoms that are similar whatever the cause, the different forms of dementia do have some particular symptoms.