Asking because i always hear the phrase “oh they must’ve been dropped on their head as a kid” in response to someone doing something weird or dumb. My sister got dropped on her head on concrete, had a bad concussion, and turned out fine, and I got a major concussion as a 1 year old due to a parking lot mugging and have some issues that are unexplainable by doctors except for that incident. I’m just wondering if the likelihood of long term damage is significant enough to warrant a household phrase.
In: Biology
If you fell down on your head once when you were a kid and you didn’t have a massive brain bleed and internal brain damage, just a bump without ~~and a little~~ concussion, it’s “fine”, it won’t fuck you up for later on.
But repeated head trauma, such as in boxers, can cause early onsets dementia/alzheimer’s years after. I think the theory is that repeated trauma causes a inflammation that never goes away and triggers the onset of the progressive neuronal death.
Edit : Apparently even one severe concussion is enough [https://www.thelancet.com/journals/lanpsy/article/PIIS2215-0366(18)30065-8/fulltext](https://www.thelancet.com/journals/lanpsy/article/PIIS2215-0366(18)30065-8/fulltext)
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