From her office overlooking the sprawling trading floor of a major bank, a risk manager sits before a bank of computer monitors. Suddenly a buzzer sounds and a red message flashes on a screen: Biometric alert, trader # 37. With a few mouse clicks, she’s looking at the data. Blood pressure – elevated. Heart rate – elevated. Adrenaline – elevated. Cortisol – elevated. When she ponders this information, she notes that none of the dozens of other traders on the floor are showing elevated readings. Leaving her office, she walks quickly down a long row of desks, traders and flashing screens until she arrives at station # 37. There, a man in his early thirties, tie loosened at his neck, his foot tapping, sits staring intensely at the screen in front of him.