The correct answer to the question is:
1. Antianxiety drugs
Explanation:
- Antianxiety drugs, also known as anxiolytics, work by depressing the activity of the nervous system.
- By lowering the activity of the nervous system, antianxiety drugs can help reduce symptoms of anxiety, such as a fast heart rate and rapid breathing.
- Examples of antianxiety drugs include benzodiazepines (e.g., Xanax, Valium) and buspirone (Buspar).
Therefore, antianxiety drugs fit the description provided in the question as they lower the heart rate and respiration rate by depressing the activity of the nervous system.
