372 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



the diet period continued. The highest values for the systolic pressure 

 were always found in the initial observation. In the majority of 

 instances the highest values for diastoUc pressure were likewise obtained 

 at that time but some of the later records show a slight rise. The 

 highest systoUc pressure recorded, 140 nam., is that for Kon on 

 October 27, 1917. It will be recalled that this subject had not then 

 been subjected to a restriction in the diet, and hence this value repre- 

 sents for him a normal, unaffected blood pressure. A very striking fall 

 in his blood pressure took place in the 2 weeks between the records 

 of October 27 and November 10; that is, the systolic blood pressure 

 fell from 140 mm. to 110 mm. 



Considering first the systolic pressures, the difference between the 

 initial record and the absolute minimum found during the experi- 

 ment is as follows: Bro, 25 mm.; Can, 28 mm.; Kon, 50 nma.; Gar, 30 

 mm.; Gul, 38 mm.; Mon, 25 mm.; Moy, 30 mm.; Pea, 10 mm.; Pec, 

 30 mm.; Spe, 26 mim. (last observation December 8); Tom, 40 mm.; 

 and Vea, 28 mm. If one uses the record at the end of the ob- 

 servations, these differences become somewhat smaller with all but 

 Bro, Pea, and Spe. In other words, we note, roughly speaking, an 

 average fall of 20 mm. systolic blood pressure from October 13 until 

 the end of the experiment. We have every reason to beheve that 

 the blood pressure fell perceptibly in the 9 days between the begin- 

 ning of the reduction in diet and October 13, so this 20 mm. 

 represents a distinctly minimum value. 



The average systolic pressures for all of the men are given in the 

 last column of table 76. The irregularity in number of subjects, 

 i. e., 11 on the first and the last four dates, and 12 on the other 

 dates, affects the averages but little. The high values for Kon on 

 October 27 raise the averages for the three pressures about 3 mm.; 

 l!he averages for that date without Kon are therefore given in a 

 footnote. The maximum average systoUc blood pressure is 115 

 mm. on October 13, while the minimum average is recorded for 

 both December 8 and 19, i. e., 89 mm., this being a total average 

 fall of 26 mm. 



The diastolic pressure likewise decreased profoundly, the initial 

 and minimum values being as follows: Bro, 90 and 65 mm.; Can, 

 100 and 65 mm. ; Kon, 90 and 65 nmi. ; Gar, 75 and 60 mm. ; Gul, 75 

 and 55 mm. ; Mon, 80 and 65 mm. ; Moy, 70 and 60 nam. ; Pea, 70 and 

 60 mm.; Pec, 85 and 64 mm.; Spe, 88 and 70 mm.; Tom, 80 and 65 

 mm. ; Vea, 80 and 50 mm. In other words, diastolic blood pressures 

 as low as 60 mm. appear with 5 of our subjects; all of the subjects 

 except Spe show at some time during the experiment diastolic blood 

 pressures of 65 mm. or less. 



The average diastolic pressures, which are also subject to the slight 

 irregularities of averaging noted for the systolic pressures, show a 



