AP PSYCHOLOGY

Detailed explanation-1: -During early adulthood stage an individual reaches physical maturity (by the age of 28). This is known as maturation. Adults have reached their peak level of physical strength and their full height and weight by this time.

Detailed explanation-2: -By the time we reach early adulthood (20 to early 40s), our physical maturation is complete, although our height and weight may increase slightly. In young adulthood, our physical abilities are at their peak, including muscle strength, reaction time, sensory abilities, and cardiac functioning.

Detailed explanation-3: -As a transitional period between adolescence and full adulthood, emerging adulthood is characterized by peak levels of risk-taking-such as binge drinking, illicit drug use, drunk or drugged driving, and casual sexual behavior (Claxton and van Dulmen 2013; Krieger et al. 2018; Li et al.

Detailed explanation-4: -Physical changes in early adulthood include reaching full height and weight, muscle gains, and a slight increase in body fat. Early adults also peak in physiological functioning as they experience increased muscle strength, reaction time, agility, bone density, and cardiac functioning.

Detailed explanation-5: -Early Adulthood Often, they are completing their education and becoming established in a career. Strength and physical performance typically reach their peak between 20 and 35 years of age (see Figure 23.8.