Neuro Note #1: Alzheimer's Disease
For my neuro note I chose to watch a TedTalk titled "What you can do to prevent Alzheimer's" by neuroscientist, Lisa Genova. She first began by explaining how the brain works and what neurologically is happening in the brain of a person who has been diagnosed with Alzheimer's. Scientists believe that Alzheimer's disease is caused by a build up of the peptide amyloid beta. The build up then begins to form amyloid plaques and tangles that affect the synaptic connections that take place in a typically functioning brain. She mentioned the roles genetics, smoking, cardiac disease, and other factors can play that can lead to Alzheimer's but it is her belief that despite those things the disease can be avoided. In a research study that was conducted on the brains of 678 nuns, images of their brains showed the presence of plaques and tangles yet none of the nuns ever showed signs or symptoms associated with Alzheimer's while they were still alive.
Based on these findings, Genova and other neuroscientists believe that the key to preventing Alzheimer's is creating more synapses, which allows for a cognitive reserve. A cognitive reserve can be created by learning or experiencing new things that not only stimulate the brain but other senses as well such as sight, touch, and sound. Participating in new and stimulating activities, such as learning a new language, provides a sense of resiliency for the brain making it less likely to begin to exhibit signs and symptoms of the disease.
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My grandfather with my dog Winston |
Genova, L. (2017, April). What you can do to prevent Alzheimer's. Retrieved July 19, 2019, from
https://www.ted.com/talks/lisa_genova_what_you_can_do_to_prevent_alzheimer_s#t-823462
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