Simplify the following

• the prenatal stage, subdivided into the germinal, the embryonic, and the foetal periods
• the neonatal stage (the first two to four weeks of life) and infancy (the subsequent
two years), which usually are grouped together
• early childhood (age two to six)
• middle childhood (from age six to the beginning of puberty, about age 12)
• adolescence (from puberty to age 18).

1 answer

The stages of human development can be simplified as follows:

  1. Prenatal Stage: Includes the germinal, embryonic, and fetal periods.
  2. Neonatal and Infancy Stage: Neonatal (first 2-4 weeks) and infancy (up to 2 years) are usually considered together.
  3. Early Childhood: Ages 2 to 6.
  4. Middle Childhood: Ages 6 to around 12 (beginning of puberty).
  5. Adolescence: Ages 12 to 18 (puberty to adulthood).