Benedict and Cathcart [Footnote: Benedict and Cathcart: Pub. 77,
Carnegie Institute of Washington.] have found that the increased
absorption of oxygen, showing increased metabolism, persists after
exercise as long as the heart action is increased.

Newburgh and Lawrence [Footnote: Newburgh, L. H., and Lawrence C.
H.: The Effect of Heat on Blood Pressure, Arch. Int. Med., February,
1914, p. 287.] have found that increased temperature in animals,
equal to that occurring in persons suffering with infection, reduces
the blood pressure, causing a hypotension. This shows that high
temperature alone in an individual sooner or later causes
hypotension.

Although prolonged pain may cause a fall of blood pressure from
shock, the first acute pain may cause a rise in blood pressure, and
Curschmann [Footnote: Curschmann: Munchen. med. Wehnschr., Oct. 15,
1907.] found that the blood pressure was high in the gastro-
intestinal crises of tabes and in colic, and that the application of
faradic electricity to the thigh could raise the blood pressure from
8 to 10 mm. in normal individuals.

The positive effect of decomposition products in the intestine, more
especially such as come from meat proteins, is well recognized; but
the importance, in high pressure cases, of the absorption of toxins
derived from imperfectly digested food remaining in the bowels over
night is not sufficiently recognized. Patients with high blood
pressure should not eat a heavy evening meal, and especially should
they not eat meat. Willson [Footnote: Willson, R. N.: The
Decomposition Food Products as Cardiovascular Products, THE JOURNAL