the direct cause of hypertension, our patient is undoubtedly
physically better, and will have less arterial tension when this
intestinal condition is removed. Therefore, our treatment of the
individual is not a success as long as such fermentation and
putrefaction persist. If such putrefaction cannot be removed by diet
and laxatives and mental rest and the prevention of physical
strenuosity, radical changes in diet are advisable, although it may
not be necessary to continue such a diet more than a few days at a
time. A rigid milk diet for a few days may change the flora of the
intestine completely; then a vegetable diet may be given, with
return to a mixed diet; or the various lactic acid bacilli may be
given, or one of the various fermented milks may be the diet, the
object being to change the flora in the intestine and thus modify
the ferments. So-called bowel antiseptics, such as salol, for a
short time may be of advantage. Colon washings may be of great
advantage. Liquid petroleum may be advantageous.

Besides preventing the absorption of toxins from the intestine, we
must prevent such absorption from any latent infection. The most
frequent kind of such infection is pyorrhea alveolaris.

A simple method that sometimes is an efficient aid in lowering the
blood pressure is complete muscular and mental relaxation. The
patient lies down for a while in the middle of the day and relaxes
every muscle of his body. With this he may take slow breathing
exercises. He should be in a dark room, quiet if possible, and
alone, and should teach his brain to be for a short time mentally
inert.

The physical methods of lowering the blood pressure are