Lifecourse Traumatic Events and Cognitive Aging in the Health and Retirement Study, in American Journal of Preventive Medicine
key takeaway: It's tricky. "Experiencing 1 or more traumatic events over the lifecourse was associated with accelerated decline compared with experiencing no events (e.g., β= −0.05 [95% CI= −0.07, −0.02] Health and Retirement Study-Telephone Interview for Cognitive Status units/year; 1 vs 0 events). In contrast, experiencing traumatic events was associated with better cognitive function cross-sectionally. Furthermore, the impact of trauma on cognitive decline was of greater magnitude when it occurred after the age of 64 years."
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