Navigation Links
Girls' early puberty linked to unstable environment via insecure attachment in infancy
Date:8/31/2010

Girls are hitting puberty earlier and earlier. One recent study found that more than 10 percent of American girls have some breast development by age 7. This news has upset many people, but it may make evolutionary sense in some cases for girls to develop faster, according to the authors of a new paper published in Psychological Science, a journal of the Association for Psychological Science.

Girls who physically mature earlier tend to start dating, have sexual intercourse at a younger age, and have more sexual partners than girls who develop later. That puts them at risk of sexually transmitted diseases and makes them more likely to have a child while they're still teenagers. These are generally seen as bad things, says Jay Belsky, of Birkbeck University in London, given that many psychologists and doctors think there are right and wrong ways to develop. But he says it makes more sense to look at development the way nature doesfrom an evolutionary perspective. This leads to the expectation that growing up in a risky, unstable environmentthe kind that fosters an insecure rather than secure attachment of infant to mothershould accelerate pubertal maturation thus increasing the chances that one could reproduce before they die.

To test the relationship between a risky, unstable environment, as reflected in an insecure infant-mother attachment bond, and early puberty, Belsky and his colleagues used data on 373 white females from a large study of early child development sponsored by the National Institute of Child Health and Human Development. Girls in the study were followed from birth until the age of 15. At 15 months, security of attachment to mother was evaluated using a standard procedure involving separating and reuniting the baby with her mother in a university laboratory. Babies who smiled, vocalized, reached, or otherwise demonstrated appreciation that their mother was back were considered to be secure; those who avoided their mot
'/>"/>

Contact: Keri Chiodo
kchiodo@psychologicalscience.org
202-293-9300
Association for Psychological Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Lack of vitamin D causes weight gain and stunts growth in girls
2. Girls have superior sense of taste to boys
3. Researcher finds Girl Scout meetings provide an opportunity to increase girls physical activity
4. More than half of Texas physicians do not always recommend HPV vaccine to girls
5. Doctors not strongly encouraging HPV vaccine to girls of certain age
6. Stevens strengthens Dominican Republics Early Warning System for Inundations
7. Reproducing early and often is the key to rapid evolution in plants
8. Early-stage gene transcription creates access to DNA
9. Global Viral Forecasting Initiative receives $11M to implement pandemic early warning system
10. Baby talk: The roots of the early vocabulary in infants learning from speech
11. Gaining too much weight during pregnancy nearly doubles risk of having a heavy baby
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/7/2014)... CORAL SPRINGS, Florida , November 6, 2014 ... improved secure authentication for better mobile security revolutionizing online transactions. ... NXTD ), Alibaba Holdings Ltd. (NYSE: BABA ), ... MSFT ), eBay Inc. (NASDAQ: EBAY ... (NASDAQ: NXTD and NXTDW), a biometric authentication ...
(Date:11/6/2014)... - Insilico Medicine, Inc, a Baltimore-based bioinformatics company ... diseases announced a research collaboration with the international ... Inc (OTC: CSBR). , "There are many companies ... Champions Oncology,s TumorGraft technology is unique in a ... experimentally generating vast amounts of valuable data. Our ...
(Date:11/4/2014)... Nov. 5, 2014 – University of Utah engineers developed ... help jet fuel produce electricity without needing to ignite ... to power portable electronics, off-grid power and sensors. , ... in the American Chemical Society journal ACS Catalysis ... a chemical reaction between a fuel and an oxygen-rich ...
Breaking Biology News(10 mins):Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2Jet-fueled electricity at room temperature 2
... because these animals are sensitive to changes in their ... mine" to give researchers early warnings about pollution or ... State University shows that data from the largest amphibian ... if uncorrected, could result in overestimates of frog populations. ...
... August 2nd, 2010 - Using little more than PVC rings, ... feel for soil water retention and field capacity, concepts that ... The demonstration, developed by Adam Howard, Drs. Josh Heitman ... to illustrate concepts that can be difficult for students to ...
... culturing adult human stem cells on a new type of ... about how the cells would differentiate, or what type of ... Aug. 1 edition of Nature Methods . Differentiation ... of cells. Understanding it is key to developing future stem ...
Cached Biology News:'Ribbit Radio' shows frog population estimates are likely flawed 2Students get a feel for soil-water relationships 2New insights into how stem cells determine what tissue to become 2
(Date:11/15/2014)... , Nov. 14, 2014 Algenol Biofuels will present ... the Oceanographic Museum of Monaco . ... Monaco is an annual invitation-only event hosted by Innovator Capital, ... Other partners and sponsors include Prince Albert ... & Burling, Cranfield University, PR Newswire, the Monte-Carlo SBM, Oceanographic ...
(Date:11/15/2014)... Calif. , Nov. 14, 2014  F. ... by Continental Who,s Who as a Pinnacle Professional in ... role as President of Cell Point, LLC. ... offices in Centennial, Colorado , ... . The company,s five technology platforms, ethylenedicysteine drug ...
(Date:11/12/2014)... 12, 2014  ReachBio Research Labs (a registered trade ... ) announced today that it has signed an agreement ... ), giving Funakoshi non-exclusive distribution rights to ReachBio,s human ... market within Japan . Under a ... research services to Japanese drug development companies. ...
(Date:11/12/2014)... November 11, 2014 Innovative ... one year of achieving GMP compliance with InstantGMP™ ... defined and impressive blueprint for creating high quality ... Requisition process and ending with the final BPR ... each product is in the process,” explains Innovative ...
Breaking Biology Technology:Algenol Biofuels Selected to Present at CleanEquity Monaco 2015 2F. David Rollo, MD, Ph.D., FACC, FACNP is recognized by Continental Who's Who as a Pinnacle Professional 2Funakoshi to Distribute ReachBio Research Labs Human Primary Cell Products in Japan 2Funakoshi to Distribute ReachBio Research Labs Human Primary Cell Products in Japan 3Innovative Formulations Achieves GMP Compliance and Success with InstantGMP™ MES 2
... Food Industry Institute/L&P Food Ingredient Co. Ltd. (GDFII/L&P) today announced that ... the target date of its final decision in the sucralose case, ... dispute (docket# 337-TA-604) was filed against the company by its main ... ...
... A coalition of Indiana,s leaders in research, medicine, ... to launch Hoosiers Work for Health ( www.hoosiersworkforhealth.org ... innovation. Co-chairs, former Indianapolis Mayor Bart Peterson, ... Entertainment Jim Morris, kicked off the effort at ...
... deCODE genetics,Inc. (Nasdaq: DCGN ) today announced that it ... to be issued on Tuesday, March 31, after,the close of ... live webcast of,its conference call to discuss these results and ... Time/ 12pm GMT/1pm British,Summer Time. , ...
Cached Biology Technology:GDFII/L&P Confirms Target Date Extension Of U.S. ITC Sucralose Ruling 2Hoosiers Work for Health Highlights Impact of Medical Research and Innovation on Indiana Economy 2Hoosiers Work for Health Highlights Impact of Medical Research and Innovation on Indiana Economy 3Hoosiers Work for Health Highlights Impact of Medical Research and Innovation on Indiana Economy 4deCODE genetics Announces Webcast of Conference Call to Discuss Full-year 2008 Financial Results 2
... polystyrene with frosted labeling surfaces, volume ... counting. 100% integrity tested. Linkage: This ... number, created to easily match Cornings ... yet, please order under the old ...
... clear polystyrene with frosted labeling surfaces, ... cell counting. 100% integrity tested. Linkage: ... product number, created to easily match ... availability yet, please order under the ...
Automated Cell Culture Flask...
... Bio-Plex suspension array system, 100-240 V, uses ... simultaneous quantitative analysis of up to 100 ... well. The suspension array is composed of ... of which may be conjugated with a ...
Biology Products: