A 31-year-old patient presents with: Depressed mood Severe rumination Excessive guilt Insomnia Marked hypervigilance Episodic panic symptoms History reveals one prior episode of decreased need for sleep and increased goal-directed behavior lasting 5 days. Which option best integrates diagnosis and mechanism-based treatment?

Match each receptor-level mechanism (Column A) with the most appropriate therapeutic effect. Each mechanism will be used once.

A patient with depression and low energy is started on an SNRI. She reports improved concentration but also develops mild insomnia and increased heart rate. Which mechanism best explains both effects?

The clinician explains that recurrent mood episodes can increase vulnerability to future episodes. Which concept best supports continued maintenance treatment?

A patient with major depressive disorder presents with persistent rumination, excessive worry, and autonomic hyperarousal. Functional imaging studies in similar patients most consistently demonstrate:

The energy expended due to physical activity accounts for the majority of our total energy output each day.

What is NOT a factor affecting energy expenditure?

Which of the following organs performs the most anabolic and catabolic processes?

According to the World Health Organization (WHO), how is “health” defined?

On a food label, for a product to use the nutrient claim “Good source,” it must contain what percentage of the Daily Value (DV) for that nutrient?