Navigation Links
Biological Basis for Homosexuality

Recent research has revealed that having several older brothers increases the chances of a man being homosexual, which is a finding that adds //weight to the idea of a biological basis for sexual orientation.

As Anthony F Bogaert of Brock University in St Catharines, Canada said, "It's likely to be a prenatal effect. This and other studies suggest that there is probably a biological basis for homosexuality."

S Marc Breedlove of Michigan State University confirmed that the finding confirms a physical basis absolutely. "Anybody's first guess would have been that the older brothers were having an effect socially, but this data doesn't support that," Breedlove said.

According to Breedlove the only link between the brothers is the mother, and so the effect has to be through the mother, especially since stepbrothers didn't have the effect.

The research was conducted on four groups of Canadian men, 944 people in all, analysing the number of brothers and sisters each had, whether the siblings were related by blood or adopted and whether they lived with those siblings.

The results of the research have been reported in a paper of Proceedings of the National Academy of Sciences. Bogaert concluded that having several biological older brothers increased the chances of a man being gay. This effect that can be detected with one older brother and becomes stronger with three or four or more, Bogaert added.

He said that when this was looked at in the context of the overall rate of homosexuality in men, which is about 3 per cent, with several older brothers the rate may increase from 3 per cent to 5 per cent.


'"/>




Page: 1

Related medicine news :

1. Smallpox as Biological Weapons?
2. Biologicals Transfer Proposal between US and Indian Biotechnology
3. Novel Biological Pacemaker Under Construction for Weak Hearts
4. Biologically Women Are More Vulnerable To HIV Infection
5. Biological Clock Could Be Re-Set: Study
6. Gold Nanoparticles Are Good Detectors Biological Toxins
7. Sunglasses Can Really Pull a Fast One on the Biological Clock, and Set a Lag in the Build Up Of Jet Lag
8. Can Men Gauge Biological Paternity Accurately
9. Biological Basis Behind a Couch Potato
10. Artificial Light May Damage Biological Clock In Premature Babies
11. Osteoarthritis May be Sign of Faster “Biological Ageing
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/18/2017)... , ... August 18, 2017 , ... ... & Hearing” campaign, advocating for active, healthy lifestyles and highlighting the importance of ... individuals with hearing impairments and shares the latest innovations in hearing aid technology. ...
(Date:8/18/2017)... (PRWEB) , ... August 18, 2017 , ... ... and financial planning services to communities in east Texas, is launching a regional ... Tumor Foundation. , Founded in 1991, the Pediatric Brain Tumor Foundation (PBTF) has ...
(Date:8/18/2017)... Missouri (PRWEB) , ... August 18, 2017 , ... “Emotions ... Suzanne Tucker, Founder of St. Louis-based positive education company Generation Mindful. To help change ... help children learn social and emotional skills, she created the Time-In Toolkit, which launched ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... tracking and monitoring solutions, announced today the launch of a redesigned corporate website, ... navigation and aesthetic, fully responsive design, and an enhanced search directory for businesses ...
(Date:8/18/2017)... ... , ... “Depressed: Super Heroes of the Bible”: a gripping and potent ... the relevance these tales may have on the reader’s life. “Depressed: Super Heroes of ... teacher, Jessica spends much of her time enjoying nature and her family in West ...
Breaking Medicine News(10 mins):
(Date:7/31/2017)... July 31, 2017 7D Surgical, developer of ground ... purchased the 7D Surgical System to support its strategic sales ... D.C. and Virginia.  7D Surgical has entered into ... of the premier medical facilities within those markets. ... ...
(Date:7/28/2017)... --EnvoyHealth, a Diplomat company, has partnered with Compliance Meds ... a technology designed to improve patient medication adherence. ... solutions and services that help track and improve patients, ... LITE offers medication monitoring and control for patients and ... Records date and time of bottle ...
(Date:7/27/2017)... 2017  West Pharmaceutical Services, Inc. (NYSE: ... second-quarter 2017 and updated financial guidance for the full-year ... Highlights Reported net sales of $397.6 ... quarter. Net sales at constant currency (organic) grew by ... $0.51, compared to $0.60 in the prior-year quarter. Second-quarter ...
Breaking Medicine Technology: