http://www.nzherald.co.nz/lifestyle/news/article.cfm?c_id=6&objectid=11544685

Systolic blood pressure (the top number in a blood pressure
reading): 6.2 per cent increase.

Diastolic blood pressure (the bottom number in a blood pressure reading): 6.8
per cent increase.

Average blood pressure: 6.4 per cent increase.

Heart rate: None.

Caffeine in blood: Increase from undetectable to 3.4 micrograms/mL.

Norepinephrine level (the stress hormone, which can give you the shakes when you
have too much caffeine) in blood - increase from 150 pg/mL to 250 pg/ML.