How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is! How amazing the physiological response of different people is!