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What's something that's not common knowledge but you think everyone should know? (kbin.social)
submitted 2 years ago by to c/asklemmy@lemmy.ml
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Specifically thinking of stuff that make your life better in the long run but all kinds of answers are welcome!

I've recently learnt about lifetraps and it's made a huge positive impact on how I view myself and my relationships

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[–] 8 points 2 years ago (2 children)

I read that as “the hippocampus shrinks at a rate of [x] [y]s per [z]. Exercise slows that shrinking in the left hippocampus.”

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  • [–] 4 points 2 years ago

    Okay so it’s not making anything grow. Yeah that’s probably it.

    Though that is still an effect on hippocampal volume.

    Maybe they meant to say something like:

    “Overall exercise doesn’t affect hippocampal volume, except in cases the hippocampus is actively shrinking in which case it can slow down the left side” (and reading between the lines possibly on the right side with a p value a little higher than significant?)

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  • [–] 4 points 2 years ago

    Agreed.

    I wonder if it would “regenerate” an atrophied or shrunken hippocampus. Like the way rest and nutrition won’t make your skin larger but it will heal missing patches of skin.

    I know I’ve seen claims from reputable sources that exercise raised BDNF levels, and that BDNF leads to hippocampal neurogenesis. I can find the sources again I’m sure if you’d like; let me know.

    But how could hippocampal neurogenesis be happening without volume change? Could it be replacing dead cells (and preventing shrinkage)? Packing neurons in more densely?

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