This document discusses different types of stressors and defenses. It describes 3 categories of stressors: biological, psychological, and social. It also outlines Maslow's hierarchy of needs. Regarding defenses, it discusses immature, neurotic, and mature defenses. Immature defenses include acting out and projection. Neurotic defenses include repression and intellectualization. Mature defenses help one adapt to stress in a healthy way and include humor, sublimation, and anticipation.