Onset of self-awareness and emotional regulation. 🏫 Childhood (5 – 13 Years)
Gradual brain development slowdown; visual acuity decreases; skin loses elasticity; weight gain in abdominal (men) or hip (women) areas.
Young adulthood is characterized by independence, self-discovery, and exploration of career and relationships. PLTW notes that this period is marked by significant identity formation, as individuals navigate intimacy, establish long-term relationships, and build careers. This stage is also associated with peak physical strength, cognitive function, and emotional well-being. development and aging timeline pltw answer key
Reaches approximately 90% of adult size by age 5.
Prefrontal cortex (PFC) continues maturing; peak of synaptic pruning (similar to age 2); development of impulse control and judgment. 20 – 40 Years Onset of self-awareness and emotional regulation
Brain circuits for complex thinking and impulse control are fully established. 🍂 Older Adult (40 – 65 Years)
Brain development slows significantly; gradual decline in some cognitive speeds may begin. PLTW notes that this period is marked by
The human lifespan is a complex and dynamic process, marked by various stages of growth, development, and aging. In this post, we'll explore the major milestones and events that occur across the lifespan, from conception to old age. This timeline will provide a comprehensive overview of the significant changes that take place, helping you better understand the intricate processes of human development and aging.