The different stages of human life are fetus, infancy, childhood, adolescence, adulthood and old age. The human life cycle starts at fertilization, goes through the embryonic stage and the fetal stage. After fetal growth... More »

There are six main stages of the human life cycle, during which a human is a fetus, baby, child, adolescent, adult and elderly person. The exact age for entering each stage varies, but all healthy humans follow the same ... More »

There are many different versions of the human stages of life, but most explanations include baby or infant, toddler, child, adolescent, adult, and mature adult. Each stage encompasses an age range. Some resources, such ... More »

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The six stages of lifespan development are: infancy, childhood, adolescence, early adulthood, middle age and older age. These reflect the biological, cognitive and psychosocial changes that occur during a person's lifeti... More »

The human life cycle begins at fertilization, then birth, and progresses through infancy, childhood, puberty, adulthood and aging, ending in death. Every stage is unique and encompasses changes in the human body. More »

The Adult Development website explains that Daniel Levinson's theory on adulthood includes the idea of three stages of adulthood occurring in a person's life after adolescence. These stages are known as early, middle and... More »

The seven stages of life are infant, childhood, teenager, young adult, adulthood, retirement and the elderly stage. The origin of the seven stages of life came from an ancient Greek philosophical view. The belief is that... More »