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.
Although Alzheimer's disease accounts for 60-70 percent of cases of dementia, other disorders that cause dementia include: Vascular dementia, Parkinson's disease, dementia with Lewy Bodies and Frontotemporal dementia. In the early stages of a disease, there can be some clear differences between the diseases.