excitement. Or, in lesser measure, it may completely destroy the
appetite, as occurs when a disturbing emotion arises at mealtime. This
is probably brought about by the checking of the gastric secretions.
(Cannon's work; Pavlow's work.)

It may check the secretion of milk in the nursing mother, or it may
change the quality of the milk so that it almost poisons the infant. It
may cause the bladder and bowels to be evacuated, or it may prevent
their evacuation.

It may so change the supply of blood in the body as to leave the head
without sufficient quantity and thus bring about a fainting spell;
_i.e._ may absolutely deprive the victim of consciousness. In lesser
degree it causes the blush, a visible manifestation of emotion often
very distressing.

It may completely abolish sex power in the male, or it may bring about
sex manifestations which the victim would almost rather die than show.

It may completely deënergize so that neither interest, enthusiasm, or
power remains. This is a familiar effect of sorrow but occurs in lesser
degree with the form of fear called worry.

The fact is that emotion is an intense bodily response to a situation
which when perceived is the state of feeling. This intense bodily
response, involving the very minutest tissues of the body, may increase
the available energy, may help the bodily functioning, may stimulate the
"psychical" processes, but also it may deënergize to an extraordinary
degree, it may interfere with every function, including thought and
action. It may surely produce acute illness, and it may, though rarely,