Cardiology: Blood for Fight or Flight

When a man gets angry, his body prepares for a fight, and his heart speeds up. When a man is frightened, his body prepares for flight, and his heart speeds up. This much is familiar medical fact.

But a group of researchers at Ohio State University Hospitals wanted to know whether the body, in its responses to stress, distinguishes between anger and fear. And since it is known that the body's arousal mechanism depends heavily upon an outpouring of adrenalin, the researchers also wanted to know what would happen if the activity of the adrenal glands was suppressed.

The first problem,...

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