Traumatic Brain Injury is serious although it is not entirely irreversible.
When I’m asked about experts’ opinions, I think of a Bob Dylan lyric: “Don’t follow leaders; watch the parkin’ meters.”
A study out of Princeton looking at 1,567 9-yo children found that for each hour less than the recommended 9-11 hours of sleep, they averaged 1.5% shorter telomeres.
Perhaps the better disease paradigm is that the ongoing clearance of bad cells and waste is a result of the evolutionary elegant design of the blood-brain barrier, which keeps the younger, more capable bone marrow-derived immune cells from entering this space.
Anderson et al showed a significant association with shorter telomeres and risk of dementia and mortality. But they call for more research and decline to state the two are causally related.
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