"Keep a stiff upper lip." Good advice?

A) Yes. Suppression actually reduces the negative emotions one experiences.
B) Yes. Suppression improves cognition by removing emotional distractions.
C) No. Suppression increases sympathetic nervous system activity, making things seem even more distressing.
D) No. Suppression increases parasympathetic nervous system activity, making things seem even more distressing.

Parasympathetic Nervous System

is part of the autonomic nervous system responsible for rest and digestion, reducing heart rate, and increasing intestinal and gland activity.

Suppression

The act of stopping or reducing the intensity or expression of an activity, feeling, or thought, consciously or unconsciously.

Sympathetic Nervous System

A part of the autonomic nervous system that typically prepares the body for physical activity and is often referred to as the "fight or flight" system.