Four or five cups of coffee are sufficient to increase one’s blood pressure, and to increase the production of stress hormones. These effects may last into the evening, even if the coffee is taken before noon.
Dr. James Lane of the Duke University Medical Center in Durham, North Carolina, told the Society of Behavioral Medicine that caffeine produced a 32 percent increase in epinephrine and a 14 percent increase in norepinephrine. These hormones are elevated by chronic stress.
Copyright Phylis A Austin 1999
