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Extreme Heat Exposure and Blood Pressure in Community Health Center Patients

JAMA Network Open 10.1001/jamanetworkopen.2026.33066

September 10, 2026 at 11:00 AM EDT

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In this cross-sectional study, extreme heat exposure was associated with modest acute reductions in BP among adults receiving care at CHCs, with slightly larger reductions among older adults. These findings suggest physiologic responses to heat that may be relevant for clinical BP measurement and cardiovascular risk assessment in outpatient settings.

Corresponding Author: Brenda M. McGrath, PhD, OCHIN, Inc, PO Box 5426, Portland, OR 97228-5426 (mcgrathb@ochin.org).

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