The adreno-cortical hormones ,are considered one of the most important
parts of the nonspecific reaction of the organism to different stress effects
including the stress induced analgesia . This paper is interested in the study of
the effect of re
peated cold stress(swimming in cold water ١٧ c for ten minutes)
and the emotional stress (immobilization for ten minutes) for the average of six
times daily for six days,(on the test of tail flick latency) in normal and
adrenalectomized rats . The aim is to know the analgesic system and their
probable relation wth the adreno-cortical hormones .
