Threatening messages that are designed to change health behaviors can cause and lead people to respond defensively.

psychological distress

Explanation:

Psychological distress is a mental stress that is caused by the work pressure, academic tension, family dispute, threat produce by other or other reasons. Psychological distress brings negative opinion about the environment, others and self. The symptoms of psychological distress includes anxiety, sadness and distractions.

The threatening messages are likely to bring feeling of insecurity, anxiety and stress thus people will respond negative to the environment or defensively this is an example of psychological distress.

a. steroid--> influences moods in the limbic system

b. inhalant--> dissolves fatty tissue in the brain

c. marijuana--> changes how the hippocampus processes sensations