Navigation Links
Boys Mature Sexually Earlier Than Ever Before: Study
Date:8/23/2011

TUESDAY, Aug. 23 (HealthDay News) -- Researchers say boys are becoming physically mature earlier than ever before -- noting that males have been reaching sexual maturity about 2.5 months earlier every decade since at least the mid-1700s.

"The reason for earlier maturity for boys, as with girls, is probably because nutrition and disease environments are getting more favorable for it," demographer Joshua Goldstein, director of the Max Planck Institute for Demographic Research in Rostock, Germany explained in an institute news release.

The new study concluded that the span of time in which people are sexually mature (but not yet considered adults) is expanding. The authors noted that the cause of this early physical maturity is purely biological and has nothing to do with technological advancements or social activities.

In the study, the researchers examined mortality data from five countries. They explained that when male hormone production during puberty reaches its highest level, the likelihood of boys dying also increases, because the release of the hormone testosterone spurs them to take more risks. This phenomenon, called the "accident hump," also occurs among male apes.

The investigators concluded that sexual maturity for boys is occurring earlier than it used to, along with this so-called accident hump.

The study authors noted that the accident hump hits its maximum in the late phase of puberty, when boys' voices change and they reach reproductive capability. Although this high-risk "reckless" phase starts earlier, it may not be more dangerous nowadays since parents tend to supervise their children more closely at younger ages.

In addition, the researchers pointed out, the gap between sexual maturity and social maturity, or adulthood, is increasing.

"The biological and social phases in the lives of young people are drifting apart ever stronger," said Goldstein. "While adolescents become
'/>"/>

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Page: 1 2

Related medicine news :

1. Like Those in Humans, Baby Chimps Forebrains Immature
2. Abnormal brain ultrasounds in premature infants indicate future risk of psychiatric disorders
3. Effects of Premature Birth May Stretch Into Adulthood: Study
4. URI nursing study finds effects of premature birth can reach into adulthood
5. Guidelines for ventilator use help premature infants breathe easier
6. Queens scientists teaming up to cure premature baby blindness
7. Experimental Test May Warn of Premature Births
8. Predicting premature birth possible through markers in mothers blood
9. Queens researchers pioneer needle-free test for premature babies
10. Drinking during pregnancy increases risk of premature birth
11. Men who lose their jobs at greater risk of dying prematurely
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Boys Mature Sexually Earlier Than Ever Before: Study
(Date:3/28/2015)... Could genetic code determine someone’s coffee ... by researchers at the Harvard T.H. Chan School ... of the Coffee and Caffeine Genetics Consortium and ... fall, the study—one of several recent HSPH investigations of ... more than 120,000 regular coffee drinkers of European and ...
(Date:3/28/2015)... March 28, 2015 With more ... the fields of osteoporosis, osteoarthritis and musculoskeletal diseases ... it may be the first time in the ... forum that the hot-button topic is an emerging ... the well-accepted scientific principles of Wolff’s law, osteogenic ...
(Date:3/28/2015)... Emergency Medical Care (EMC), a New York ... commemorated its three-year anniversary of being the only 24/7 ... 24-hour urgent care, Emergency Medical Care offers its clients ... Emergency Medical Care’s Urgent Care NYC services ... injuries, ear infections, fevers, insect bites, burns, animal bites, ...
(Date:3/28/2015)... (PRWEB) March 28, 2015 Centurion Service Group ... auction on Thursday, April 2 at their Las Vegas warehouse, ... NV 89081. The sale, which consists of equipment from hospitals ... promptly at 9 a.m. PDT. , Buyers will find ... surgery equipment. “We are a one-stop-shop,” said Erik Tivin, CEO ...
(Date:3/28/2015)... NV (PRWEB) March 28, 2015 How ... is a growing field in orthopaedic medicine. While diagnostic ... tear to confirm the pain etiology, research presented today ... AOSSM ) Specialty Day suggests that pain relief from ... arthroscopic hip surgery. , “Our study looked to ...
Breaking Medicine News(10 mins):Health News:How Coffee Habits Relate to Our Genetic Code and Enhancing the Caffeine Experience 2Health News:How Coffee Habits Relate to Our Genetic Code and Enhancing the Caffeine Experience 3Health News:Non-Drug Protocol for Building Bone Density Expected to Steal Spotlight at World Congress on Osteoporosis 2Health News:Emergency Medical Care Celebrates Three Years of 24/7 Walk-In Urgent Care Services 2Health News:Medical Equipment Auction to Take Place in North Las Vegas 2Health News:Pain Injections for Hip Arthroscopy Patients May Not Predict Surgical Outcomes 2
... are at high risk of developing kidney disease., Intensive diabetes ... diabetes. , Between one million and three million Americans may ... and 15,000 adults - approximately 80 people per day - ... People with type 1 diabetes are at high ...
... -- Low oxygen supply (hypoxia) increases the risk of death ... brain injury (TBI), a new study finds. Brain oxygen ... of whom had bleeding within the brain after serious blunt ... severe disability, dying or being in a vegetative state. ...
... -- A healthy lifestyle may help reduce football players, risk ... suggests. Due to repeated head trauma, football players are ... suffer cognitive problems as they age. In this ... and found that those who ate high-fat foods had greater ...
... SAN FRANCISCO, CA NOVEMBER 11, 2011 ... drug-eluting stents (DES) in native coronary arteries found ... results over plain old uncoated-balloon angioplasty (POBA). Results ... at the 23rd annual Transcatheter Cardiovascular Therapeutics (TCT) ...
... Nov. 11 (HealthDay News) -- Age-related declines in physical ... a new study. "The more income and assets ... co-author Virginia Richardson, a professor of social work at ... The researchers analyzed data from roughly 6,500 participants ...
... By Serena Gordon HealthDay Reporter , THURSDAY, Nov. ... hyperactivity disorder (ADHD) as children have less gray matter in ... didn,t have ADHD in their youth, researchers say. ... it was still somewhat disappointing to see that even with ...
Cached Medicine News:Health News:Intensive diabetes therapy protects Type 1 diabetics' kidneys 2Health News:Former Football Players' Brains May Benefit From Healthy Lifestyle 2Health News:Results of the PEPCAD-DES trial reported at TCT 2011 2Health News:ADHD Brain Changes Appear to Persist Into Adulthood 2Health News:ADHD Brain Changes Appear to Persist Into Adulthood 3
(Date:3/27/2015)... Zimmer Holdings, Inc. (NYSE and SIX: ZMH) is ... patients. Available in both small (6mm) and ... Fixation System from Zimmer is a modular system that offers ... XtraFix System allows surgeons to eliminate steps, as ... resulting in saved time, costs and overall team effort. ...
(Date:3/27/2015)... DALLAS , March 27, 2015 ... Market by Product (Diagnostic Catheter (Conventional, Advanced, Ultrasound), Ablation ... ICE, X-ray)) & Indication (AF, VT, WPW) - Global ... Market is expected to reach around ~$4.73 Billion by ... forecast period 2014 to 2019. Browse ...
(Date:3/27/2015)... 2015  Johnson & Johnson (NYSE: JNJ ) will ... Time) on Thursday, April 23, 2015, from the State Theatre ... Investors and other interested parties may access the live audio ... www.jnj.com and clicking on the webcast icon. ... made available a few hours after the live meeting concludes. ...
Breaking Medicine Technology:Zimmer Debuts New Modular External Fixation System 2Zimmer Debuts New Modular External Fixation System 3Electrophysiology (EP) Market Worth $4.73 Billion by 2019 2Electrophysiology (EP) Market Worth $4.73 Billion by 2019 3Electrophysiology (EP) Market Worth $4.73 Billion by 2019 4
... in Cellular and Molecular Medicine at Boston Children,s Hospital ... developed a molecular delivery platform that overcomes one of the ... cancer: Making sure the treatment gets to the right place ... PhD, of the PCMM/IDI, and a former fellow from her ...
... 18, 2012  Genetic testing to determine a more accurate initial ... remains rare, but is often done for inappropriate patients, according ... pharmacy benefit manager (PBM). The study will be presented on ... (AMCP),s 24th Annual Meeting & Expo in San Francisco. ...
Cached Medicine Technology:Packaging therapeutic RNAs for targeted treatment of breast cancer 2Packaging therapeutic RNAs for targeted treatment of breast cancer 3Packaging therapeutic RNAs for targeted treatment of breast cancer 4Genetic testing for new warfarin patients is rare, but often inappropriate 2
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
Medicine Products: