Alzheimer's disease (AD),also known in medical literature as Alzheimer disease,is the most common form of dementia. There is no cure for the disease,which worsens as it progresses,and eventually leads to death. It was first described by German psychiatrist and neuropathologist Alois Alzheimer in 1906 and was named after him. Most often,AD is diagnosed in people over 65 years of age,although the less prevalent early onset Alzheimer's can occur much earlier. In 2006,there were 26.6 million people worldwide with AD. The American Medical Association considers alcoholism as a disease and supports a classification that includes both physical and mental components. The biological mechanisms that cause alcoholism are not well understood. Social environment,stress,mental health,family history,age,ethnic group,and gender all influence the risk for the condition. Significant alcohol intake produces changes in the brain's structure and chemistry | |
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