Daily life brings with it lots of stress, but some of it may be good for the circulation as scientists have found anger causes carotid artery dilation and increases blood flow to the brain.

Scientists from the University of Southern California and Cedars-Sinai Medical Center also noticed that his reflex was absent in people with high blood pressure.

During the study, participants were given a series of tasks designed to provoke mental stress, including reading, arithmetic and anger recall tests, and their cardiovascular activity was measured by ultrasound imaging.

Commenting on the lack of response in high blood pressure individuals, one of the researchers Tasneem Naqvi said it “contributes to the genesis of myocardial ischemia and confers an increased risk in patients with coronary artery disease.”

Scientists also believe that insufficient blood flow increase to the brain during mental activities may affect cognition and performance during complex cerebral tasks.

Some people suffering from high blood pressure have turned to nutritional supplements that may normalize circulation and promote blood vessel function, including horse chestnut, ginger and ginkgo biloba extracts.