Lee [Footnote: Lee: Boston Med. and Surg. Jour., Oct. 7, 1915.]
examined 662 young men at the average age of 18, and found that the
average systolic blood pressure was 120 mm., and the average
diastolic 80 mm. Eighty-five of these young men, however, had a
systolic pressure of over 140. It is not unusual to find that a
young man who is very athletic has an abnormally high systolic
pressure.

Barach and Marks [Footnote: Barach, J. H., and Marks, W. L.: Blood
Pressures: Their Relation to Each Other and to Physical Efficiency,
Arch. Int. Med., April, 1914, p 648.] in a series of 656 healthy
young men, found that the systolic pressure was above 150 in only 10
percent, and that in 338 cases the diastolic pressure, read at the
fifth phase, did not exceed 100 mm. in 96 percent

Nicholson [Footnote: Nicholson: Am. Jour. Med. Sc., April, 1914, p.
514.] believes that with a low systolic pressure and a large
pressure pulse there is probably a strong heart and dilated blood
vessels, while with a low systolic pressure and a small pressure
pulse the heart itself is weak, with also, perhaps, dilated blood
vessels. If there is a high systolic pressure and a correspondingly
high diastolic pressure, the balance between the vessels and the
heart is compensated as long as the heart muscle is sufficient. He
believes the velocity of the blood in the blood stream may be
roughly estimated as being equal to the pressure pulse multiplied by
the pulse rate.

Faber 44 [Footnote: Faber: Ugeskrifta f. Laeger, June 10, 1915.]
examined 211 obese patients, and in 182 of these there was no kidney
or vascular disturbance. In 52 percent of these 211 persons the