Question

mention the classification of the adulthood stage according to the age factor​

Answer 1

Answer:

Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. These changes may be gradual or rapid and can reflect positive, negative, or no change from previous levels of functioning. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging.[1] Biological changes influence psychological and interpersonal/social developmental changes, which are often described by stage theories of human development.

Explanation:

please mark me as brainlist