To provide a heat generating body which nevertheless an excellent warming
effect (for example, an effect for relaxation of a pain by a thermal
stimulus) can be obtained, hardly provides a user with an unwell feeling
due to a high temperature, is fit to curved surface parts such as the
abdominal region and the waist and is able to comfortably warm a desired
site with a good feeling for use over a long period of time.
A heat generating body wherein three or more plural sectional exothermic
parts are provided at intervals via a sectioned part which is a heat seal
part, which is characterized in that the sectional exothermic parts have
a heat generating composition capable of causing heat generation upon
contact with oxygen in air and are at least constituted of three kinds of
a low temperature sectional exothermic part, a middle temperature
sectional exothermic part and a high temperature sectional exothermic
part; that a maximum temperature of the high temperature sectional
exothermic part is higher than a maximum temperature of the low
temperature sectional exothermic part; that a maximum temperature of the
middle temperature sectional exothermic part is laid between a maximum
temperature of the high temperature sectional exothermic part and a
maximum temperature of the low temperature sectional exothermic part; and
that the middle temperature sectional exothermic part is constituted of
plural sectional exothermic parts having a different maximum temperature.