Having male twin reduces woman's fertility: study
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Women who have a male twin are less likely to marry and have children, perhaps because of being exposed to their brother's testosterone for nine months in the womb, researchers reported on Monday.
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Men who weigh too much are more likely to have poor sperm quality, research on nearly 1,600 young Danish men has found. Being too thin is a problem, too.
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Taller women are more likely to have   twins, according to a U.S. study.
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Research from Australia in this week&#39;s issue of THE LANCET (p 1513) suggests that tall girls given oestrogen therapy in adolescence to reduce adult height are more likely to experience later fertility problems than the general population.
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Could it be possible, will laptop computers be responsible for a generation of infertile men? It may sound far-fetched, but if the latest results from a new study prove to be true, it just might become a reality.
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Taking regular hot baths may make men infertile, say US researchers.
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IVF ups the risk of a twin pregnancy even if only one embryo is transferred, claim scientists.
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Men and teenage boys who use laptop computers may be damaging their fertility, a US study shows. The combination of the heat generated by the computer and the posture needed to balance
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Diet and lifestyle play a far smaller role than genetic factors in determining whether a child becomes overweight, according to a British study of twins published on Thursday.
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Genetics may play a greater role than previously thought in accounting for black women's higher rate of premature births, researchers at Washington University School of Medicine have found.
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CHICAGO - Beyond the tired cliches and sperm-and-egg basics taught in grade school science class, researchers are discovering that men and women are even more different than anyone realized.    It turns out that major illnesses like heart disease and lung cancer are influenced by gender and that perhaps treatments for women ought to be slightly different from the approach used for men...
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[World News]: London, Nov 25 : A new study, to be published in the journal &#39;Twin Research&#39; has indicated that showing an inclination towards being unfaithful, not having faith in god and getting divorced might something that is far beyond your control as
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Women pregnant with twins, triplets or  quadruplets are at greater risk of serious health complications  than are women carrying just one fetus, according to a Canadian  study published on Wednesday.
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Who needs a man? Female sharks can fertilize their own eggs with sperm, says a new study being published Wednesday.
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Mothers and fathers with multiple  sclerosis are equally likely to pass genetic risk for it on to  their children, according to a study countering a previous  finding that fathers were twice as likely to do so.
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Being either too thin or too heavy may lower a man&#39;s sperm count, in some cases enough to impair fertility, researchers report.
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Tall girls given oestrogen therapy in adolescence to reduce their adult height could experience impaired fertility in later life, an Australian study has found.