In "Healthy at 100" by Robbins, I wondered why it was that people who lived at high altitudes live longer. Might be from less oxygen leading to better circulation. Scroll down to the article here: http://www.winwenger.com/ebooks/guaran3.htm
It seems that increased CO2 levels in the body expands blood flow and artery size in the brain.
kumbhaka related study
Posted - Apr 03 2007 : 12:00:50 PM
