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. Over 50 percent of people diagnosed with dementia have Alzheimer's disease. Other common causes include: Multi-infarct dementia (a type of vascular dementia caused by a disruption of blood flow to the brain)