How do people with Alzheimer’s not forget everything? For example, I have seen people with Alzheimer’s who do not remember loved ones and other stuff, but they still remember how to speak and how to move etc. What stops them from forgetting every single tiny little thing they know?
In: Biology
Alzheimer kills Neurons. There are different amounts of neurons for different memories/tasks. The more a often neuron gets used, the more neurons of the same type form. (Yes I know it’s more complicated but it will do for this eli5)
Saw a film yesterday but weren’t really paying attention. Not many neurons. So few, you might just completely forget this movie without even having akzheimers.
Your favorite movie of all time that you have seen 10 times, talked about with multiple friends and read about in multiple forums? That has a good chance of staying with you till the day you die.
The neurons responsible for triggering your breathing many times per minute, 24/7, 365 days a year for your entire lifetime? There are a lot of those. They are among the last to go.
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