Because I know this forum prides itself on having the best and most distinctive minds around, I would like to ask for your honest help in a simple subject matter, namely increasing the brain capacity of the elderly. Do you not feel sad knowing that someday your parent's brains will start to decay. They will start to act weird and forget things and feel sick all the time, and have overbearing feelings of doom and gloom, until they are your parents no longer... How sad, how sad. Please combine your individual gifted intellects into one MEGA INTELLECT, and solve this problem! It will affect you too one day!

Two thoughts that pacify me on this matter:

1. I may have transferred my consciousness to an age-resistant body by the time I'd have to worry about age! I may even have the power/option to prolong my parents' lives to that point. I will also be able to shoot lasers from my eyes.

OR

2. I will carry my parents' legacy. I surpass them and fully expect my own children to surpass me, so I don't have to concern myself with my own inevitable mental deterioration.

Endurance sports are supposed to keep the brain from decaying. Dont ask how.

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Quote from Dissidence

Endurance sports are supposed to keep the brain from decaying. Dont ask how.

So how do I make them do that? Hang a slice of pizza on a go cart programmed to go in circles??

Exercising the brain works too. People who are inactive and uninspired tend to get Alzheimer's more frequently.

Even getting your parents to play games can help. Just... not TV, or something too passive. They need to be active, mentally and/or physically.

Quote from Binturong

Quote from Dissidence

Endurance sports are supposed to keep the brain from decaying. Dont ask how.

So how do I make them do that? Hang a slice of pizza on a go cart programmed to go in circles??

Tell them of the benefits and hope they make a rational decision. Otherwise scrap their car(s)

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no real answers, but the brain is hardly a "simple" subject. If all we needed was a some pill to be like the guy in Limitless...we would have made exponential progress in all the fields.
A few suggestions:
-Be active, learn something new (to stimulate the brain)
-Reading
-Speaking
-Exercising (walking)

Though don't expect changes dramatically, changes don't happen instantaneously (you don't get a couch potato to run a marathon overnight). Also, don't try to change everything at the same time, do it one at a time.