> Push yourself longer than a few days without sleep, and the effects can be lethal.
The above statement in the article links to a story on Reuters about one case of an intern who stayed up for 72 hours and died for unknown reasons. Hardly proof.
This is so overblow. Many people have stayed awake for more than 72 hours and not died. In fact, there is no evidence that sleep deprivation causes death in humans. If you don't agree with that statement please falsify it with proof.
I recently stayed awake for 72 hours as an experiment. It was hard. I had all of the temporary effects described in the article except for hallucination but it was all temporary. After 14 hours of sleep I was perfectly fine. That's one data point.
Don't drive, operate machinery or perform surgery when sleep deprived but it's not some terrifying dangerous thing to go with out sleep for a few days.