Dr. Yaffe from the University of San Francisco talked about the relationship between PTSD (Post Traumatic Stress Disorder) and dementia. She noted that PTSD has been shown to reduce hippocampus (the primary organ of memory) volume, and prolonged stress increases cortisol which over time can cause brain damage (see the accompanying article “Stress Depression and Dementia” in this section.).
In their review of the files of more than 50,000 veterans, some with PTSD some without, after adjusting for other things they found those with PTSD had more than double the risk of developing all dementias, as veterans who did not suffer from PTSD.
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Prevention Strategies 
