At last we're in an area where I have some actual expertise.
I want to dig a little deeper into the data presented in that article - that ECG shows a rate somewhere around 300 beats per minute, which is generally well beyond the speed that can be generated by adrenaline and should, in fact, cause a person to lose consciousness. Cardiac ouput drops because the heart doesn't have time to refill between beats.
What it shows looks like SVT (supraventricular tachycardia) and is definitely not a stress reaction but a heart problem. The author's obvious lack of knowledge about the LM and landing precedures (stranded on the moon?!) is not very reassuring about the authenticity of the ECG.
EDIT:Well, hell. Never mind. After I got the image cleaned up a little bit, I found that they used paper with a scale I'm not used to, That rate's about 150, right about what you would expect.
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