Answer:
Traffic congestion has adverse consequences on health, both mental and physical. You get stress from feeling helpless, waiting without control over your time, and the interactions with others caught in the same predicament. Physically, you have a loss of body movement; to stretch out when needed since you are confined to a space. Plus, there are potential mishaps that may cause physical harm.
No one likes to be slowed or put into a position of loss of control.