Sex Difference Current Events | Sex Difference News
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Working too much can be dangerous for teen's sexual health
Allowing teens to work too many hours in the wrong environment can be dangerous for their sexual health by fostering conditions that lead them to older sex partners, a new study shows. view more (2009-08-27)
Fungi can tell us about the origin of sex chromosomes
Fungi do not have sexes, just so-called mating types. A new study being published today in the prestigious journal PLoS shows that there are great similarities between the parts of DNA that determine the sex of plants and animals and the parts of DNA that determine mating types in certain fungi. view more (2008-03-18)
A new explanation for evolutionary changes in genetic sex-determination systems
In animals with separate sexes, embryos commit to becoming male or female at an early stage. Often this key decision is made by sex determination genes on the sex chromosomes. The genes involved in sexual development have changed remarkably little during evolution. In contrast, the sex determination genes and the sex chromosomes themselves are... view more... (2007-10-22)
The ugly truth about one night stands
Men are far more interested in casual sex than women. While men need to be exceptionally attractive to tempt women to consider casual sex, men are far less choosy. view more (2009-08-11)
New research reveals men estimate men's risks of common disorders higher than women do, and vice versa
New research from University of Glasgow on lay perceptions about gender differences in health reveals that both men and women believe health risks are higher for their own sex than for the opposite sex. But, it also shows that males think that men are fitter and females think women are more athletic. view more (2005-04-20)
Thirty per cent of school children have sex before they're sixteen
A survey of 931 school children has found that 31 per cent had reported that they had had sex at least once before they were 16. 'Half of these children had not used any form of contraception during these sexual encounters,' said Professor Louise Wallace at the joint British Psychological Society's Division of Health Psychology and European... view more... (2001-08-30)
Female sex offenders often have mental problems
Women who commit sexual offences are just as likely to have mental problems or drug addictions as other violent female criminals. This according to the largest study ever conducted of women convicted of sexual offences in Sweden. view more (2008-05-15)
Why don't more animals change their sex?
Most animals, like humans, have separate sexes - they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their lifetime and then switch to the other sex, a phenomenon called sequential hermaphroditism. view more (2009-02-04)
Double identities lie behind chromosome disorders
Chromosome disorders in sex cells cause infertility, miscarriage and irregular numbers of chromosomes (aneuploidy) in neonates. A new study from Karolinska Institutet published in the scientific journal Nature Genetics shows how chromosome disorders can arise when sex cells are formed. view more (2007-07-09)
Sex hormone signature indicates gender rather than just chromosomes
Help with assigning gender could one day be at hand for intersex individuals whose genital phenotypes and sex chromosomes don't match, thanks to the discovery of a stable sex hormone signature in our cells. view more (2007-10-18)
Claims of sex-related differences in genetic association studies often not properly validated
A review of previous research suggests that prominent claims of sex differences of gene-disease associations are often insufficiently documented and validated. view more (2007-08-22)
Sex unlikely to cause a stroke and may reduce risk of sudden death
Middle aged men should be heartened to know that frequent sex is not likely to increase their risk of stroke. It may actually reduce the risk of sudden death, suggests research in the Journal of Epidemiology and Community Health. view more (2002-01-15)
'Corrective' sex education may make sexual offenders more dangerous
While it is commonly thought that men with low IQs sexually offend because of a lack of knowledge or sexual deviance, new research has found the men may sexually offend because of their exposure to "corrective" sex education previously taken. view more (2007-10-17)
Teenage Boys Exposed To Environmental Pollutants Less Likely To Produce Male Children (p143)
A research letter in this week's issue of THE LANCET provides further evidence that adolescent boys exposed to organic pollutants are less likely to father a male child in adulthood. Investigators from the National Cheng Kung University Medical College, Taiwan, and the London School of Hygiene and Tropical Medicine, UK, studied the sex of over... view more... (2002-07-10)
Teacher-led sex education of limited benefit
Improvements in teacher-delivered sex education have some beneficial effect on the quality of young people’s sexual relationships, but do not reduce sexual risk taking in adolescents, finds a study in this week’s BMJ. view more (2002-06-12)
Unwanted sex appears common in some teen relationships
Many adolescent girls report being threatened or pressured by their partners into having sex, potentially increasing their risk for sexually transmitted infections and pregnancies view more (2006-06-06)
MOST ACQUISITION OF MENINGITIS BACTERIA AMONG STUDENTS OCCURS IN FIRST WEEK OF UNIVERSITY TERM
A study of 2,500 first year Nottingham University students, led by Neal and colleagues of the University?s Department of Public Health Medicine, showed that the carriage rate of bacterial meningitis strains had quadrupled within the first four days of the autumn term. Students living in catered halls were at greatest risk, with over a third of... view more... (2000-03-21)
Teenagers know about condoms ... so why don't they use them?
The review of qualitative studies, published today in The Lancet, looked at 268 studies of the sexual behaviour of under-25-year-olds from South Africa to Sweden. It reveals how, in all countries, social expectations of how men and women should behave frustrate campaigners' efforts to encourage safer sex. view more (2006-11-03)
Launch of handbook for European sex workers - UK press briefing
Drawing directly from the experience of sex workers, Hustling for Health is a practical guide which promotes health and safety in the sex industry through better access to good services. The guide was produced by a network of projects in health care, social services and the sex industry in 16 European countries, and has been supported by the... view more... (1999-06-03)
Mixed Results For Study Assesing Effectiveness Of Peer-Led Sex Education
Results of a study in this week's issue of THE LANCET suggest a modest benefit for the use of peers (older pupils) to deliver sex-education classes rather than teachers. However the study does not show any effect of such peer-led sex education in reducing the incidence of unprotected first intercourse by age 16 years. The UK has... view more... (2004-07-21)
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