
Question: I've only seen a few episodes so some info would be helpful. After running very fast and for a long period of time, why does the Flash suddenly become very weak?

Question: Why and how is Laura Palmer killed?
Chosen answer: Laura was killed by her father Leland, whilst he was apparently possessed by the spirit BOB. The exact manner of her murder is not clear, as several injuries found during her autopsy we later discover occurred during a separate incident before her murder. We know that she was beaten and killed in an abandoned train car, and her body was then wrapped in plastic and thrown in the river.
Answer: Why? Because her father was possessed by an evil entity. How? Blunt force trauma.
Answer: The Flash burns energy the same way a normal human does, just at an extremely high tolerance. His metabolism is incredibly high and he must constantly eat to maintain his energy levels. If he runs at high speed for a long period of time he will burn his stored energy and become very weak.
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