Lifecycle of Human Being



The four focal phases of Human cycle comprise birth and early stages, childhood, youth and maturity. Birth commonly takes place between insemination and 40 weeks following insemination whereas embryonic stage lasts from birth through the first year of life. On the other hand, babyhood is between the ages of one and ten and youth is between 12 and 18. Lastly, adulthood is the lengthiest and it lasts from age 18 to old age.





The basic eight stages are:

  1. Prenatal
  2. First year of infant’s life
  3. Toddler
  4. School age
  5. Adolescence
  6. Adult
  7. Lactating female
  8. Mature adult

Life cycle and age  to be in that life cycle:

  1. Prenatal :25- 40 years
  2. First year of infant’s life:0 to 12 months
  3. Toddler:1 – 2 year
  4. School age:3 to 12 years
  5. Adolescence: 13 to 19 years
  6. Adult: 19 to rest of the life
  7. Lactating female: 18-40 years
  8. Mature adult: 21 years to rest of the life

Describe nutritional challenges associated with that particular lifecycle.

Birth to 12 months

  • Begin and continue breastmilk or formula.

4 to 6 months

  • Start cereals.
  • Start vegetables, fruits, and juices. Use real fruit juices, not a sweetened fruit drink. Use commercial baby food or unseasoned strained and mashed table foods.

5 to 6 months Babies can sit up in a high chair with support.

  • Start plain meats which have more iron and protein than combination dinners or soups.

6 to 9 months

  • Start finger foods. Teething crackers and other foods such as toast, or dry, unsweetened cereal are good choices.
  • Practice using a cup to drink milk, juice, or water as an adult holds it. Two handle cups and a spout are easiest to use.

9 to 12 months

  • Start table diets that are well sliced or crushed. Avoid giving hard foods, such as nuts, popcorn, or raw vegetables; babies easily choke on these items.

Infancy and Early Childhood:

Energy. While most adults necessitate 25 to 30 calories per kg, a 4 kg kid requires more than 100 kcals/kg (430 calories/day). Children 4 to 6 months who weigh 6 kg require roughly 82 kcals/kg (490 calories/day). Liveliness needs remain high through the early influential years. Children 1 to 3 years of age require around 83 kcals/kg (990 kcals/day). Energy supplies decline afterward and are based on weight, height, and physical activity.


  1. Life Cycles (album) by The Word Alive
  2. Life Cycle (Dave Holland album), 1983
  3. Life Cycle (Sieges Even album), 1988
  4. Lifecycle (album), a 2008 album by Yellowjackets