News tagged with sex
Patient openness to research can depend on race and sex of study personnel
Researchers at the University of Cincinnati (UC) have found that the race and sex of study personnel can influence a patient's decision on whether or not to participate in clinical research.
Health
May 17, 2013 |
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Global health policy fails to address burden of disease on men
Men experience a higher burden of disease and lower life expectancy than women, but policies focusing on the health needs of men are notably absent from the strategies of global health organisations, according to a Viewpoint ...
Health
May 16, 2013 |
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The future of Plan B
The Obama administration and federal courts are wrangling over changes to the regulations governing access to emergency contraceptives. The administration supports new rules that would allow girls as young ...
Medications
May 14, 2013 |
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Free testosterone drives cancer aggressiveness, study finds
What is the reason for the widely reported fact that men are more likely than women to die of cancer? New evidence from population studies suggests that free testosterone could be a key driver of cancer aggressiveness in ...
Cancer
May 14, 2013 |
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WHO says Cambodia can end HIV infections by 2020
Cambodia is on track to become one of the few countries in the world to successfully reverse its HIV epidemic and may eliminate new infections by 2020, the World Health Organization said Friday.
HIV & AIDS
May 10, 2013 |
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Self-collection of samples for HPV testing shows promise in detection of cervical cancer in Kenya
In Kenya, women face a cervical cancer mortality rate that is approximately 10 times as high as in the United States. A study by researchers at the University of North Carolina at Chapel Hill suggests that training women ...
Cancer
May 01, 2013 |
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The biology behind binge eating
Female rats are much more likely to binge eat than male rats, according to new research that provides some of the strongest evidence yet that biology plays a role in eating disorders.
Diseases, Conditions, Syndromes
May 01, 2013 |
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HIV 'cure' looks 'promising,' Danish scientists contend
(HealthDay)—Danish scientists testing a novel HIV treatment in human trials contend that they're confident their strategy will result in a cure for the AIDS-causing virus, according to news reports.
HIV & AIDS
Apr 29, 2013 |
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Obesity may influence heart function through sex hormones
New research suggests that changes in sex hormones as seen in obesity may have possible effects on the heart. The study by researchers from Belgium, presented at the European Congress of Endocrinology in Copenhagen, Denmark, ...
Overweight and Obesity
Apr 29, 2013 |
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Scientists unpack testosterone's role in schizophrenia
Testosterone may trigger a brain chemical process linked to schizophrenia but the same sex hormone can also improve cognitive thinking skills in men with the disorder, two new studies show.
Neuroscience
Apr 26, 2013 |
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US high court weighs dispute over AIDS funding
(AP)—The U.S. Supreme Court wrestled Monday with the constitutional implications of a policy that forces private health organizations to denounce prostitution as a condition to get AIDS funding.
HIV & AIDS
Apr 22, 2013 |
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New studies examine caffeine's effect on cognitive tasks, food pairing
Since 1977, there has been a 70% increase in caffeine consumption among children and adolescents. Whether it is coffee, tea, soda, or energy drinks, our children are consuming more of it. One well documented effect of caffeine ...
Health
Apr 22, 2013 |
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Teens' brains are more sensitive to rewarding feedback from peers
Teenagers are risk-takers—they're more likely than children or adults to experiment with illicit substances, have unprotected sex, and drive recklessly. But research shows that teenagers have the knowledge and ability to ...
Psychology & Psychiatry
Apr 17, 2013 |
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Medical myth: You can control the sex of your baby
Despite most parents ultimately just wishing for a healthy baby, there are many cultural and social factors that can drive the desire for a baby of a particular sex.
Health
Apr 17, 2013 |
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In sex, happiness hinges on keeping up with the Joneses, study finds
Sex apparently is like income: People are generally happy when they keep pace with the Joneses and they're even happier if they get a bit more.
Health
Apr 15, 2013 |
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Sex
In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into male and female types (or sexes). Sexual reproduction involves combining specialized cells (gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.
An organism's sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.
For more information about Sex, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
