Day 1: Best of Dan Childs' Sleepless Saga

For "GMA's" 40th anniversary, our own Dan Childs is staying up for 40 hours straight.
1:41 | 11/18/15

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Transcript for Day 1: Best of Dan Childs' Sleepless Saga
So welcome Cindy Sheehan ate what he's 43 experiments. He is spending. The next how many hours away well this is going to be forty hours I'm going to be awake for the entire broadcast what you're trying to do physically. It's the psychological stimulus. For example Pope. Well wolf what we're doing what ever we can stay away care. Simon. I think the potter book that. We usually do. Humans to eat more. It feels kind of general physically miserable quietly. I absolutely. I could do it anyway that you do you heat. As our. QPE. Not really being able to to focus as well as I wasn't beginning of this experiment. He's very early days and quite likely an elephant a whimsical little bit so I'm really looking forward to sharing this with all of you. It.

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

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