Human development encompasses several distinct stages, each marked by unique physical and mental changes. Adolescence, beginning around age 12 and ending around age 20, is characterized by significant physical and emotional transformations, including puberty.
The stages of the human being are the different phases through which a person traverses from his conception until his death, and in the long term of the changes in his body as in his mind.
Stages of human development
Old age
Diseases, physical ailments and disinterest in general life
It is a stage of decline in the physical and reproductive faculties, although it is estimated that the amount of physical and intellectual development.
He starts around 60 years of age and continues until his death.
The last stage of human life.
Adulthood
An adult is expected to have emotional control and a vital disposition that he did not have in previous stages.
It is considered that an adult individual is in the fullness of his psychic, physical and biological faculties.
Begins after 25 years of age, with the end of youth and continues until the entry into old age or old age, around 60 years.
Youth
During youth the individual is more aware of who he is and more determined to what he wants in life.
It is considered that youth normally ranges between 20 and 25 years of age, although these parameters are not fixed.
The individual is ready to start a life responsible for himself.
Youth is called the first stage of adulthood or early adulthood
Adolescence
Pubertad
Beginning of the feminine menstruation.
Accelerated growth of height and weight.
Appearance of secondary sexual characteristics such as the growth of the breasts, or the lengthening of the penis.
Thickening of the voice in males.
The change of the body between girls and boys is different.
Appearance of body hair
During this stage, more significant changes are presented at a physical and emotional level.
It begins at 12 years old and ends with the entry into youth, around 20 years old.
This fourth stage of human life begins at the end of childhood
Childhood
At this stage, the sense of duty, self-love, respect for others and for others, as well as the ability to distinguish between the real and the imaginary are also fixed.
In school the child learns through various playful and pedagogical mechanisms to take advantage of their mental, physical and social faculties.
Third stage of human development coincides with schooling
Located between 6 and 12 years old
Infancy
It presents reflex and automatic movements, such as the suction of the maternal breast, also communicates with the outside by means of indiscriminate emotional responses
begins the recognition of their sensory and motor abilities
It goes from the moment of birth to around six years of age
Second stage of the life of every human being
Prenatal
Fetal
Continue to develop until nine months of pregnancy
The fetus will already have a human form,
Embryonic
During this phase the layers the embryo begins to multiply and specialize