Inflammation in the brain is a characteristic feature of Alzheimer’s disease. Recently scientists have been looking for potential peripheral infections, particulary in the oral cavity that could explain brain inflammation. Oral bacteria, herpes virus, and possibly fungus, ie (Candida) can enter the blood stream, pass the blood brain barrier and cause inflammation of the brain. Any one of these strains of bacteria, viruses, or fungus could be implicated in Alzheimer’s enigma. Future research on this subject could help explain late onset Alzheimr’s Disease, as for instance more than 70 percent of the population over 50 have latent herpes simplex in the peripheral nervous system. Half the world’s population has Candida, a fungus found in the mouth which can become treacherous and lead to an infection if it enters the bloodstream. So it is highly recomended to have regular hygiene visits, to help prevent inflammation.