When do headaches strike? when the brain releases natural pain fighting chemicals called endorphines

when nerves in the face or head have pressure put on them

whenever people practice yoga and meditaiton

whenever people take over the counter pain medications such as Tylenol

Signs of a sprain might include: a deformed appearance immobility a grinding sensation swelling

Which statement is false? a. an extinction burst is the complete cessation of the target behavior after the extinction procedure has started. b. extinction procedures should not be used with behaviors that cause serious injury to the subject. c. if the behavior analyst does not have the ability to control the subject's access to reinforcement, an extinction procedure should not be implemented. d. spontaneous recovery of the target behavior will be short-lived, as long as the extinction procedure remains in effect

What is the principle whereby improvement occurs when increased demands are made upon the body