Alzheimer’s Disease

Alzheimer’s disease, which affects more than 5 million Americans, is a brain disorder that over time destroys a person’s memory and ability to learn, reason, make judgments, communicate and perform daily activities. The disease usually begins after age 60, with the risk going up with age. It is estimated that about half of the population 85 and older has Alzheimer’s; therefore, it is not an inevitable part of aging. Rarer forms of the disease can occur earlier in life. The brains of people with Alzheimer’s are characterized by having clumps, called amyloid plaques, and tangled fibers, called neurofibrillary tangles, but what causes them remains an active area of research. Genetics and aspects of aging may play a role in creating the brain changes that most likely cause the disease symptoms. As Alzheimer’s progresses, individuals may experience changes in personality and behavior, including anxiety, suspiciousness, agitation, delusions and hallucinations. Disease course varies with each individual, but the average person lives 8 to 10 years after diagnosis. No cure currently exists for Alzheimer’s and drugs have variable effectiveness, but considerable research about the disease is leading to new approaches to drugs. Effective care and support has been shown to improve the quality of life for people with Alzheimer’s and their caregivers.

Helen Lavretsky, M.D. - Brain & Behavior Research Expert on Alzheimer's
Helen Lavretsky, M.D.
January 12, 2017
In a study comparing the effects of memory training and yoga meditation in older adults, researchers found that a 12-week program of memory training could...
Julien Muffat, Ph.D. - Brain & behavior research expert on alzheimer's disease
Julien Muffat, Ph.D.
November 01, 2016
For the first time, neuroscientists have coaxed human stem cells to grow into microglia, elusive and difficult-to-study immune cells that are essential for a...
Davangere P. Devanand, M.D. - Brain & behavior research expert on alzheimers
Davangere P. Devanand, M.D.
March 04, 2016
In a 2013 clinical trial, the widely prescribed antidepressant citalopram (sold under Celexa and other trade names) was found to reduce the agitation that is...
Eric Kandel, M.D. - Brain & Behavior research expert on mental illness
Eric Kandel, M.D.
August 17, 2015
In research reported June 17th in the journal Neuron, scientists have shown that a protein called CPEB3 is critical for the stabilization and storage of long-...
Paul Worley, M.D. - Brain & Behavior expert on schizophrenia
Paul Worley, M.D.
March 17, 2015
Scientists have a new understanding of how cells called interneurons embed themselves in neural networks as the brain develops. Interneurons form essential...


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