Pounding on the bottom of a glass bottle of ketchup is one of life's small annoyances. Getting that sweet, red concoction ...

This would surely be stressful. In fact, extensive research has found that people do experience stress when interacting with individuals from backgrounds that are different from their own.

ROS at moderate concentrations have important signaling roles under physiological conditions. Excessive or sustained ROS production, however, when exceeding the available antioxidant defense systems, ...