ter
for twenty-four hours, then taken directly from the cold water and
eaten.

If this is not effective a supplementary regime may be adopted that is
only in part dietetic, i.e., _to rise_ ONE HOUR BEFORE BREAKFAST,
_drink two glasses of cold water and take a brisk walk of fifteen to
thirty minutes_. The cold water has a tonic effect upon the stomach,
preparing it for a rapid digestion of the breakfast. It also washes
out the accumulation of mucus in the stomach, which may easily equal a
pint in volume. This pint of mucous plus the pint of water, making a
quart of liquid altogether, pours through the pylorus, and during the
rapid walk, works its way rapidly down through the alimentary tract,
washing the whole tract and preparing it to receive and rapidly to
digest the next meal. This slimy water, having washed out the stomach
and small intestine, then passes into the large intestine, moistening
and lubricating its contents and causing it to move gradually towards
the rectum, where it stimulates a normal free passage of the bowels
after breakfast.

Any usual case of constipation will yield to this treatment. Such a
treatment is incomparably more rational than the taking of medicines.

d. =The Dietetic Control of Sleep.=--Most students study evenings. If
their heavy meal is a dinner at 5:30 or 6 p.m. they are likely to feel
very drowsy by 7:30 or 8 o'clock. This is a perfectly natural
experience, all animals manifesting a drowsiness after a heavy meal.
If one could lie down and sleep for an hour while his dinner is
digesting, he could probably rise at 9 o'clock and put in two or three
hours of good hard work. He would find himself at 11 or 12 o'clock so
thoroughly awake, however, that he might have difficulty in getting to
sleep if he retired at that hour. If, on the other hand, one has his
dinner in the middle of the day and a light supper at night, he is
able to begin studying within an hour after supper and keep it up
until he is ready to retire. In this case also, he is likely to be so
wide awake at the time of retiring that he may have difficulty in
getting to sleep. In either of these cases, it is altogether proper
and advisable to take a light lunch before retiring. A double purpose
can be served by this lunch. In the first place, the taking of
anything into the stomach that requires digestion tends to deplete the
circulation from other organs (brain in this case) to the stomach. In
the second place, the food m