This issue of Critical Care Nursing Clinics is Guest Edited by Sonya Hardin, PhD, RN and will focus on Aging and Critical Care. Article topics will include epidemiology of acute and critical illness in the older adult, impact of aging physiology in critical care, ethnogeriatrics perspectives in critical care, focused assessment and patient safety for the older adult in critical care, nutrition and hydration in older adults in critical care, infection and immune fuction in older adults in critical care and neurologic, psychiatric and renal issues in older adults in critical care.