Natural Sciences

Stages of Human development

The stages of human development are well-defined time lapses, in which human beings experience biological and psychological changes and their social performance varies as well.

Stages of human development

For some specialists, it is about 5 stages of human development, childhood, adolescence , youth, maturity and old age. However, some consider up to 11 stages, since within those there are important subdivisions that mark specific behaviors.

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Before explaining each stage it is convenient to know what the human being is; Although there are many definitions influenced by social aspects, the human being is a species endowed with the greatest capacity for intelligence within the natural kingdom.

What is the human being at each stage of development?

The human being is an integral unit in which biological, social, psychic, chemical, ethical and cultural systems coexist perfectly intertwined that define the profile of each stage of development.

Hence, specialists in social and natural sciences consider that there are stages of human development with specific characteristics that become more complex as humans grow and incorporate new elements into their being.

  1. Prenatal stage

This stage is considered from the moment of fertilization and, after 40 weeks, it will culminate with the birth. Although it is the shortest phase of all, here the human being is formed as such and its future development will depend on it.

Within this stage the specialists also count on others of shorter duration but very important. They are:

  • Preimplantation phase
  • Embryonic phase
  • Fetal phase

The fetal phase is the longest of all, corresponding to 38 weeks in the maternal uterus.

  1. Childhood Phase

It covers between two and three years of development in which the human will grow very quickly, and will adapt to the environment outside the uterus through the activation of all his senses.

Although he does not know of behavioral norms, he will gradually recognize them by the action of his parents and close relatives who are producing symbolic information to stimulate learning .

At this time, the human begins to recognize his first sentimental affections towards the people around him, especially he weaves an affective bond with his mother. You will also explore your social and playful environment, learn to walk and babble your first words.

  1. Early childhood

At this stage the human has three years of being born, and early childhood is considered up to 5 years, in which he must control his sphincters, communicate verbally with short sentences, learn to eat independently and get ready to go to the preschool.

Your brain will begin to be nourished by a lot of external information with which it will begin to develop your intellect, imagination, creativity and sociability with other children and adults.

Their gender is defined around the masculine or feminine as well as their attitudes and cultural preferences.

  1. End of childhood

This stage ranges from 5 to 11 years, in which you will handle oral and written language with great fluency and precision. They will have concluded the first school stage recognizing their capacities, limitations and emotions .

All his organs will be developed from a biological point of view, however, he is preparing for new hormonal and bodily developments.

You will also value your own individuality and that of others, you will be able to decide on many aspects independently and dare to pose your own social challenges, opening up for yourself a range of new possibilities to grow as a human being.

  1. Adolescent phase

This stage covers up to 19 years of age, in which their self-esteem, identity and individuality are strengthened in front of the group. The human reaches all its biological development and sexual maturity to undertake new moral, educational, social and work responsibilities.

Adolescence also has its distinctive internal phases, as it is a very complex stage in which important determinations take place.

  • Early adolescence

This stage is considered between 10 and 13 years of age, in which body changes are evident between males and females. But, it can be very complicated for those humans who must define their sexual tendency despite the biological changes that they develop.

During this stage, humans tend to develop curiosity and expectations regarding themselves, which requires a very close educational and family accompaniment to help them grow healthy of mind, body, heart and with sufficient self-esteem to face society.

  • Second adolescence

Between the ages of 14 and 17, the affective feelings of love begin to emerge, many of the adolescents begin to confront their parents, family or friends in search of their own definitions and social adaptations.

They understand the value of their school performance, they question social norms seeking their understanding or rejection and they try to evolve towards economic independence.

  • Late adolescence

The human is biologically developed at its highest level, it is about young adults who have carved out their identity, preferences, modes of autonomy and appreciation for their family and friends.

At this stage they focus their attention on the future, feel that they can engage in conversations on the same level as their parents with total respect, and recognize their authority.

  1. Youth phase

It is a very short phase between the ages of 19 and 25, in which important decisions are made in the educational field and especially in the workplace. During this time, many reach university academic degrees and achieve financial independence from their parents or relatives.

Although all biological development has been achieved, in this stage the body will continue to grow as the accumulated calories are higher than those recommended daily. For this reason, many gain weight and if there is carelessness they can suffer from obesity.

  1. Adult stage

After age 25, early adulthood begins until age 36. It is considered a period of emotional stability and full development of all the capacities learned in previous stages. If you want, it is one of the stages in which the result of the learning and skills acquired will be observed.

Many human beings will form families and begin to develop roles similar to those of their parents. At this stage, new physical changes such as baldness in men begin to register and some gray hair appears in both men and women.

  1. Maturity stage

It is considered between the ages of 36 and 45, this stage is really brief; However, it is the floor or support of what will come in the future in biological terms since the body’s capacities begin to diminish and require vitamin reinforcement or exercises .

In females, climacteric may begin and in males their sperm production is reduced. Presbyopia, gray hair, and easy expressions may appear for both, announcing the next stage of development.

  1. End of the maturity stage

Until the age of 65, this stage is considered, in which human beings have accumulated experience, wisdom and can guide the rising generations with patience and love.

Although all the senses begin to diminish and the determining ailments of life appear, human beings achieve social recognition for their teachings and patience to make life understood.

The general state of health weakens over time and chronic diseases appear that will accompany or determine death.

  1. Stage of old age

This period is relatively short, lasting almost a decade between the ages of 65 and 75. Human development towards diminishing faculties, abilities and capacities is greatly accelerated.

Many do not reach this stage, however society must understand that the elderly lose their hearing, vision and even many no longer walk and their sensitivity is losing. Which leads to a greater dependence on others to survive.

  1. Senility stage

It is calculated between 75 years until the end of life. It is about the total aging of the human being which prevents them, on many occasions, from bathing by themselves, eating independently, and moving around easily.

On many occasions they develop memory loss, and a feeling of pessimism and anguish for the future takes hold of their being.

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