I had to take my blood pressure for my Fitness and Health class today at one of those free Blood-Pressure level machines... Well, some background.. im 16, about 5'6", but underweight (according to MY scale, im 100lbs!)... Im pretty scrawney, but not totally un-fit... So i take my blood pressure, the first time i got 155/85.. this was right after a brisk walk in the rain form my car to the machine... I wait about 5 mins, followed what it said (raise arm, open close hands rapidly for 30 secs), then went in again... this time i got 144/75... I saw the chart, and it showed my first number was 'off the chart' (it litsed HIGH as 130+ i think), and the second number i was in the HIGH range. (both levels on the second time). Just wondering, is this too high or life threatening? I eat quite alot but never get any heavier or fatter. I dont eat terribly unhealthily either. Im in okay shape since my fitness and health class is on every other school day (i ran 1600m in 7:35, though long, i beat my old time by 30 secs, and was i think within the top 10 of my class of all athletes, which im not).