Temporary workers may work full-time or part-time, depending on the individual case. In some instances, temporary workers receive benefits (such as health insurance), but usually benefits are only given to permanent employees. Not all temporary employees find jobs through a temporary employment agency.
1 Alzheimer's disease (AD) is the most common cause of dementia in people over age 65 with cause possibly related to amyloid plaques and neurofibrillary tangles.2  Almost all brain functions, including memory, movement, language, judgment, behavior, and abstract thinking, are eventually affected. Huntington's disease is a heredity disorder caused by a faulty gene. 2  Children of those with the disorder have a 50% chance of getting the disease. 3  Symptoms begin in those 30 to 40 years of age, beginning with personality changes such as anxiety and depression.
Causes of dementia depend on the age when symptoms begin. In the elderly population (usually defined in this context as over 65 years of age), a large majority of dementia cases are caused by Alzheimer's disease, vascular dementia, or both.bout 3% of people between the ages of 65â74 have dementia, 19% between 75 and 84 and nearly half of those over 85 years of age. In 2013 dementia resulted in about 1.7 million deaths up from 0.8 million in 1990. As more people are living longer, dementia is becoming more common in the population as a whole.