BioMed Central

A rush of blood to the head -- anger increases blood flow

Published in Hematology Week, July 20th, 2009

Mental stress causes carotid artery dilation and increases brain blood flow. A series of ultrasound experiments, described in BioMed Central's open access journal Cardiovascular Ultrasound, also found that this dilatory reflex was absent in people with high blood pressure.

Tasneem Naqvi and Hahn Hyuhn from the University of Southern California and Cedars-Sinai Medical Center evaluated carotid artery reactivity and brain blood flow in response to mental stress in 10 healthy young volunteers (aged between 19 and 27 years), 20 older healthy volunteers (aged 38 to 60 years) and in 28 patients with essential hypertension (aged 38 to 64 years). They found that in healthy...

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Source: Hematology Week (2009-07-20)

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