symptom – n. a change in the body or mind which indicates that a disease is present
interact – v. to act upon one another
repetitive – adj. happening again and again : repeated many times
therapeutic – adj. of or relating to the treatment of illness
typical – adj. normal for a person, thing, or group : average or usual
range – n. a sequence, series, or scale between limits
diagnosis – n. the act of identifying a disease from its signs and symptoms