Perry's 'Oops': Science Behind Brain Freeze

Experts explain the cause for moments of forgetfulness.
2:08 | 11/11/11

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Transcript for Perry's 'Oops': Science Behind Brain Freeze
And now for all of us is there any way to keep that from happening you're under pressure people watching and your brain freezes you can't remember a name a phrase. You know by heart. When it happened to Rick Perry last night at the debate. We started asking questions what -- the experts say about when and why our brains betray us like that here's ABC's John Berman. The there's nothing worse they completely forgetting your point and -- televised debate camp are. Groups well except for seemingly losing the ability talked and all -- -- televised debate. This happen the Arizona governor -- group. How about forgetting the words to the national -- and. In -- televised NBA game and forgetting -- -- -- not as bad as. We're getting your wife did that happen to -- deal if he -- Emmy Awards and -- course mostly mom wonderful wife. Yes Rick Perry has joint and illustrious club of those who suffer from it -- three. We use our -- loads to sort our memory the problem is that part of the brain is sensitive to anxiety. You start to freeze up then -- get more stressed in the stress hormones go up even higher. And that shuts down a frontal lobe and disconnected from the rest of the brain. -- making it harder to retrieve those memories which explains -- Chief Justice John Roberts could flood the oath of office. That I will execute the office of the president of the United States faithfully. -- George W. Bush could flood the case fool -- -- Shame on. Shame on you. Before we can't get fooled again. Would have all the famous embarrassing cases of brain freeze the absolutely most perfect example of all time news. On. I can't remember. -- John Berman ABC news New York.

This transcript has been automatically generated and may not be 100% accurate.

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