An increase in physical activity increases production of the body's natural painkillers, which are:

Health literacy refers to:

A) the ability to translate medical terms in foreign languages B) positive feedback from a health care worker about a patient's health status C) geriatric patients' outlook on their own health D) written, spoken, or conceptual knowledge of health issues

Which of the following viruses has the ability to cause a pandemic?

A) hantavirus B) severe acute respiratory syndrome (SARS) virus C) monkeypox D) all of the above