APA Health Care and Life Sciences

Identify one vulnerable population and discuss physiological or psychological factors that have contributed to their vulnerability

one reference from an English-titled, peer-reviewed NURSING journal less than 5 y/o.
APA format required

Title: Caring for the Vulnerable: Perspectives in nursing theory, practice, and research
Author(s): de Chesnay, M., & Anderson, B.A.
Publisher, Edition: Burlington, MA: Jones & Bartlett. (5th ed)