Message me when you read this or hit like so I know you saw this!! The high-yield decreasing/falling trends to remember are: - Marriage rates ↓ — fewer people marry, and people tend to marry later. - Birth/fertility rates ↓ — families generally have fewer children. - Household size ↓ — fewer people per household compared with earlier generations. - Traditional nuclear-family households ↓ — greater diversity in family structures. - Infant mortality ↓ — long-term improvement due to medical/public-health advances. - Death rates from many historically common diseases ↓ because of improved health care and prevention. - Physical strength, speed, reaction time, and sensory acuity ↓ with aging. - Fluid intelligence ↓ with age — especially speed of processing and solving novel problems. - Crystallized intelligence generally does NOT decline early; knowledge, vocabulary, and accumulated experience tend to remain stable or increase until later life. - Social interaction/network size may decrease in later adulthood, while emotionally meaningful relationships become more selective. And remember the opposite trends, because the NCE loves flipping the question: Increasing ↑: life expectancy, age at first marriage, older-adult population, cohabitation, diversity of family structures, women in the workforce, and the need for elder care. One big exam trap: “Intelligence declines with age” is too broad. Think fluid ↓, crystallized stays stable/↑.