Aphthous stomatitis countries. Within nations, it is more common in higher socioeconomic groups. Males and females are affected in an equal ratio, and the peak age of onset between 10 and 19 years. About 80% of people with aphthous stomatitis first developed the condition before the age of 30. There have been reports of ethnic variation. For example, in the United States, aphthous stomatitis may be three times more common in white-skinned people than black-skinned people. "Aphthous affectations" and "aphthous ulcerations" of the mouth are mentioned several times in the treatise "Of the Epidemics" (part of the Hippocratic corpus, in the 4th
The Body Book The Body Book The Body Book: Feed, Move, Understand and Love Your Amazing Body is a 2013 health book co-written by Sandra Bark and actress Cameron Diaz. It was a New York Times Bestseller. The book takes a scientific approach. It cites articles from the following peer-reviewed academic journals: the "American Journal of Preventive Medicine", "JAMA: The Journal of the American Medical Association", "Archives of Internal Medicine", "Medicine & Science in Sports & Exercise", "The Lancet", "Sleep", "Diabetes Care", "Diabetes Research and Clinical Practice", and the "Journal of Applied Physiology". It is divided into three sections: nutrition, fitness, and mind/body