ScienceDaily (Dec. 12, 2009) Recent studies show that one in three people suffer from stress and the number is on the rise. But stress isn't a new problem.
While the physiological state wasn't properly named until the 1930s, new research from The University of Western Ontario proves stress has plagued humans for hundreds, and perhaps thousands of years.
The first study of its kind, published in the Journal of Archaeological Science, detected the stress hormone cortisol in the hair of ancient Peruvians, who lived between 550 and 1532 A.D.
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