Under Topics A-Z tab, each topic provides an overview, data, national snapshot, etc. Topics include adolescent/young adult health, cancer, heart disease, HIV, and many more. Look for references at the bottom of pages.
From National Institutes of Health and National Library of Medicine, MedlinePlus offers a broad array of health information. Health Topics tab lists categories such as Disorders & Conditions, Demographic Groups, Body Systems. Includes informative videos, a dictionary, and more.