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.
Alzheimerâs disease is the most common cause of dementia in people age 65 years and older. Dementia is significant loss of cognitive functions such as memory, judgment, attention, and abstract thinking. There are three brain abnormalities that are the hallmarks of the Alzheimerâs disease process: Plaques.