A restriction of oxygen lasting a few minutes that produces cognitive defects, such as language delays and mental retardation due to brain cell death, is called

Imagine that you have an intense fear of flying and that that you are enrolled in a counterconditioning therapy program to help you lose this fear

Which of the following situations would greatly interfere with the success of this therapy for fear of flying? a. Your plane develops engine trouble while you are on a short 20-minute practice flight. b. You take a muscle relaxant to calm you before the therapy. c. You are told over and over that flying is quite safe. d. You watch a movie about a person safely flying on a trip. e. B and C are correct.

The most severe cases of "jet lag" occur when we travel

a. west. b. north. c. east. d. south. e. short distances.