Navigation Links
Studying hair of ancient Peruvians answers questions about stress
Date:12/9/2009

Recent studies show that one in three Canadians 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.

When an individual is stressed due to real or perceived threats cortisol is released into nearly every part of the body, including blood, saliva, urine and hair.

Emily Webb, a PhD candidate at Western in Archaeological Science and the study's lead author, says the findings are important because it will allow us to better understand how ancient people behaved and felt during their time on Earth but more importantly, to better understand stress and how it affects us today.

"By studying the lives of people using traditional archeological methods like surveying and excavation and combining that with new research techniques like sampling ancient hair specimens, we can get a good picture of what life was like and how our ancestors may have responded to life-changing experiences like illness and disease," explains Webb.

Analysis of cortisol levels in ancient hair allows researchers to assess stress during a short, but critical, period of an individual's life. For this pilot study, the Western researchers selected hair samples from 10 individuals from five different archaeological sites in Peru, and analyzed them in segments to determine cortisol levels.

While many of the individuals studied showed high stress levels right before death, Webb noted that a majority also experienced multiple episodes of stress throughout their final years of their life, again proving that much like today, st
'/>"/>

Contact: Jeffrey Renaud
jrenaud9@uwo.ca
519-661-2111 x85165
University of Western Ontario
Source:Eurekalert

Page: 1 2

Related biology news :

1. Exploration by explosion: Studying the inner realm of living cells
2. Model microbial community for studying expanding dead zones characterized
3. Geologists studying groundwater arsenic levels in India empower Bengali women, children
4. K-State receives more than $780,000 to fund graduate students studying ecology, evolution, genomics
5. LSU receives $3.6 million to fund center studying hazardous waste cleanup and health impacts
6. Douglas-fir, geoducks make strange bedfellows in studying climate change
7. UNH researchers studying spiny dogfish, Gulf of Maines mini shark
8. Methods for studying DNA repair and protein modification are featured in CSH Protocols
9. Studying volcanoes with balloons
10. Veterinary college researcher studying brain tumors in people and animals
11. Studying rivers for clues to global carbon cycle
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/3/2014)... 2, 2014 As part of our commitment ... is pleased to announce the release of a new ... collect the workforce data that they need. ... left by existing readers. Many such devices have serious ... modern technology. Older models force users to navigate numerous ...
(Date:11/21/2014)... -- Earlier this year Donald Spector , Chairman of ... the most prolific inventors in the world, got a ... to third party agencies. Spector envisioned this technology even ... earliest known patents in this area. Now major technology ... care, elder care and hospital applications. This technology has ...
(Date:11/21/2014)... Wash. , Nov. 20, 2014 C-Labs ... for the Internet of Things (IoT), today announced the ... of chief operating officer. Previously a strategic advisor to ... finance, and operations. Mr. Traynor is based out of ... . He reports to Chris Muench , Chief ...
Breaking Biology News(10 mins):Inception Technologies to Release New Biometric Reader 2Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 2Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 4C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2
... COLLEGE STATION The U.S. Department of Energy has granted more ... fuel source. And if that succeeds within 18 months, almost $2 million ... fast-growing grass species. , ... our country is the leader around the world in terms of energy ...
... fishermen would not give up their livelihood in the face ... University of East Anglia (UEA). A new report, published ... about poverty and adaptation by investigating why fishermen in developing ... Daw from UEA,s School of International Development and the Stockholm ...
... 2012 Aware, Inc. (NASDAQ: AWRE ), a ... today reported financial results for its fourth quarter and year ... fourth quarter of 2011 was $5.9 million, a decrease of ... year. Net income for the fourth quarter of 2011 was ...
Cached Biology News:US Energy Department grants $1.87 million for plant fuel project 2University of East Anglia research reveals why fishermen keep fishing despite dwindling catches 2University of East Anglia research reveals why fishermen keep fishing despite dwindling catches 3Aware, Inc. Reports Fourth Quarter and 2011 Financial Results 2Aware, Inc. Reports Fourth Quarter and 2011 Financial Results 3Aware, Inc. Reports Fourth Quarter and 2011 Financial Results 4Aware, Inc. Reports Fourth Quarter and 2011 Financial Results 5
(Date:12/19/2014)... 2014 Ed Bilsky, Ph.D., vice president ... for Excellence in the Neurosciences (CEN), and professor of ... selected as a member of the prestigious Dana Alliance ... from Maine to receive this honor. , The ... by the Dana Foundation. Its mission is to ...
(Date:12/19/2014)... 2014 The empty capsules market ... ageing population and technological innovations in the empty ... are catalysing the growth of the empty capsules ... , Scope of Report , The report ... new entrants/smaller firms to gauge the pulse of ...
(Date:12/19/2014)... Dec. 18, 2014   ISN has released ... Performance Indicators publication series. With data aggregated ... reported in 2013 within its online contractor management platform, ... key performance indicator (KPI) statistics. The ... publication is available in two industry specific ...
(Date:12/17/2014)... (PRWEB) December 16, 2014 “Never ... at Philipps- Universität Marburg’s Department of Physics, advises ... in the newly released SPIE Women in ... be too shy to ask questions.” , In ... engineering, and mathematics) occupations ranging from university professor ...
Breaking Biology Technology:UNE's Ed Bilsky Named Member of Dana Alliance for Brain Initiatives 2UNE's Ed Bilsky Named Member of Dana Alliance for Brain Initiatives 3Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 2Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 3Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 4ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3
... the Basque Country (Spain) has developed a method to ... and suspected to be explosive. Some of the samples ... and boric acid. Each year police forces seize ... indoor firework manufacturing (i.e. flares or those used in ...
... that affects about one in four military veterans of the ... which differed in importance depending upon the locations where veterans ... , Published online today in the journal ... and veterans, locations during the war. GWI was most ...
... recycling of "old" processes and protocols that were once ... settings, but which can now be applied to nano-sized ... instruments and know-how., After several years of research, scientists ... Emir Gonzlez (currently at Instituto Geofsico Universidad Javeriana y ...
Cached Biology Technology:Are those liquids explosive? 2Causes of Gulf War Illness are complex and vary by deployment area -- Baylor University study 2Causes of Gulf War Illness are complex and vary by deployment area -- Baylor University study 3
... Detection Kit is intended for quantitative detection ... peptides, which can result from the gradual, ... aspartic acid residues during storage or handling. ... the monitoring of charge differences for detection, ...
...
... and miRNA Isolation Traditional mRNA isolation ... and can result in the loss of ... miRNA Isolation Kit purifies all RNA species ... Through an enrichment procedure included in the ...
ABI Plant AFLP Kits • EcoRI-ACA AFLP Amplification Primers...
Biology Products: