对老年人血压的严格控制显著降低了患轻度认知功能障碍（mild cognitive impairment，MCI）的风险，MCI是早期痴呆的前兆。

MCI被定义为记忆力和思维能力的下降，这比正常衰老时预期的下降要大，是痴呆症的一个危险因素。痴呆症是指一组与记忆力下降或其他思维能力下降有关的症状，这些症状的严重程度足以降低一个人进行日常活动的能力。

研究结果发表在1月28日出版的《美国医学会杂志（Journal of the American Medical Association）》上。

Lowering blood pressure reduces risk of cognitive impairment

https://www.sciencedaily.com/releases/2019/01/190128111703.htm

1. Jeff D. Williamson, Nicholas M. Pajewski, Alexander P. Auchus, R. Nick Bryan, Gordon Chelune, Alfred K. Cheung, Maryjo L. Cleveland, Laura H. Coker, Michael G. Crowe, William C. Cushman, Jeffrey A. Cutler, Christos Davatzikos, Lisa Desiderio, Guray Erus, Larry J. Fine, Sarah A. Gaussoin, Darrin Harris, Meng-Kang Hsieh, Karen C. Johnson, Paul L. Kimmel, Manjula Kurella Tamura, Lenore J. Launer, Alan J. Lerner, Cora E. Lewis, Jennifer Martindale-Adams, Claudia S. Moy, Ilya M. Nasrallah, Linda O. Nichols, Suzanne Oparil, Paula K. Ogrocki, Mahboob Rahman, Stephen R. Rapp, David M. Reboussin, Michael V. Rocco, Bonnie C. Sachs, Kaycee M. Sink, Carolyn H. Still, Mark A. Supiano, Joni K. Snyder, Virginia G. Wadley, Jennifer Walker, Daniel E. Weiner, Paul K. Whelton, Valerie M. Wilson, Nancy Woolard, Jackson T. Wright, Clinton B. Wright. Effect of Intensive vs Standard Blood Pressure Control on Probable Dementia. JAMA, 2019; DOI: 10.1001/jama.2018.21442

Lowering blood pressure could cut risk of mild cognitive impairment