Researchers are using the behavior of politicians and game show contestants to study human physiology under conditions of stress that cannot be reproduced in the lab. By analyzing blinking patterns, researchers can gain insights into human physiology during high-stress situations. TV game shows have proven to be a valuable resource for studying human behavior under high-stress conditions. University of Arizona researchers analyzed contestants on the British TV show Mastermind to collect data on blinking patterns. The study found that blinking acts as a 'punctuation of thought' and that contestants blinked more frequently under stress.