Menu

Blog

Cardiovascular, Cerebral Effect for Red Bull + Mental Stress

Posted on Mon, Feb 02, 2015
Cardiovascular, Cerebral Effect for Red Bull + Mental Stress

Increase in systolic and diastolic blood pressure, heart rate, decreased cerebral blood flow velocity

FRIDAY, Jan. 30, 2015 (HealthDay News) -- Red Bull consumption combined with mental stress correlates with increased blood pressure (BP) and heart rate, according to a study published in the Jan. 15 issue of The American Journal of Cardiology.

Erik Konrad Grasser, M.D., Ph.D., from the University of Fribourg in Switzerland, and colleagues examined the consequences of Red Bull ingestion in combination with mental stress. Twenty healthy participants ingested 355 ml Red Bull or water and underwent a mental arithmetic test for five minutes 80 minutes later.

FEATURED JOB: Emergency Medicine Physician in Houston, TX 

The researchers found that water had no significant effects, but Red Bull increased systolic and diastolic BP (+7 mm Hg and +4 mm Hg, respectively) and heart rate (+7 beats/min). There was a greater decrease in cerebral blood flow velocity with Red Bull versus water ingestion (−9 versus −3 cm/s; P < 0.005). There were further increases in systolic and diastolic BP (+3 mm Hg; P < 0.05) and heart rate (+13 beats/min; P < 0.005) with additional mental stress after ingestion of Red Bull; similar increases were also seen after ingestion of water. The combination of Red Bull and mental stress increased systolic and diastolic BP (about +10 mm Hg and +7 mm Hg, respectively) and heart rate (+20 beats/min), and decreased cerebral blood flow velocity (−7 cm/s).

FEATURED JOB: Pediatrician in Loxahatchee, FL

"The combination of Red Bull and mental stress impose a cumulative cardiovascular load and reduces cerebral blood flow even under a mental challenge," the authors write.

Abstract
Full Text



 

Share    
Comments
Blog post currently doesn't have any comments.