After you transfer care of a 77-year-old female patient to the ED nurse, the patient informs the nurse that she has a history of heart problems and is having chest pain. On scene and throughout transport, the patient denied any complaint, despite your repeated inquiry. This has greatly upset your partner since he feels the patient made him look foolish in front of the emergency department staff. Based on your knowledge of the patient's age group, which explanation would you give your partner?

Lifespan development is the study of how people change and grow from conception to death. It involves three developmental domains: physical, cognitive, and psychosocial. 

Lifespan development includes five stages:
Infancy: From birth to one year old
Toddlerhood: From one to five years old
Childhood: From three to 11 years old
Adolescence: From 12 to 18 years old
Adulthood: After adolescence