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'Be happy to have son'

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  • 'Be happy to have son'

    Vijay Dutt
    London, August 4, 2004

    An invaluable tip is being offered to those who wish to have male offspring. A British scientist, Sarah Jones of the University of Kent in Canterbury, has found that mothers who are convinced that they have a long and healthy future are more likely to give birth to sons. Research involving mothers has indicated that the assessment of their own life expectancy can predict whether they are likely to have a male or female offspring.

    The odds for giving birth to a son goes up with every year of life that women believe they have ahead of them. Women who think they will die early are more likely to have daughters. The hypothesis, which was first advanced by Robert Trivers and Dan Willard of Harvard University in 1973, rests on the idea that men's reproductive success is much more variable than that of women and depends heavily on their health and status.

    In the early days, high-status and strong men were able to father large number of children while those at the bottom of the social hierarchy had few children. Trivers and Willard suggested that mothers in good health and high status and access to resources should have more sons than daughters.

    John's study, which has been published in the Royal Society Journal Biology Letters, is based on 609 women who gave birth in Gloucestershire in 2001. She asked them their guesses about when they expected to die. Their answers were then assessed against their ages to determine how many years of life each imagined they had ahead of them. Those who expected to live longer were significantly more likely to have given birth to sons.

    Dr John said that her theory was consistent with that of Trivers and Willard. "When all signs indicate the future will be short, the optimal reproductive strategy should be to invest in offspring who will have the best chance under uncertain conditions of surviving to an age where they can reproduce."

    In short be happy, go-lucky, if you want a son.,00430004.htm
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  • #2
    Expecting a long life is the secret to having sons!

    London | August 04, 2004 4:54:57 PM IST

    A new study has revealed that the secret to having a son lies in believing that you are going to live a long life and also in maintaining a healthy lifestyle.

    According to New Scientist, researchers at the University of Kent questioned 600 women who had given birth in the past four years, and found that most of them who had had sons believed that they would lead a long life.

    The researchers also found that fit women living in good environments have raised levels of testosterone, which in turn promotes the survival of male embryos in the womb. Boys also need more nutrition while growing up.

    Earlier studies have shown that women in developing countries who are poorly nourished are more likely to give birth to girls than boys.

    But now the researchers have found that it is not only a woman's physical condition but also her psychological conditioning that makes a difference. They are suggesting that a woman who expects a long lifespan might be more likely to have a boy purely because her optimistic estimate reflects excellent fitness and a good environment.

    "People's subjective life expectancy is actually quite an accurate prediction of when they will die. They are continually reassessing what the future holds, so it's a psychologically salient variable," said Sarah Jones, a biological anthropologist at the University of Kent in Canterbury, UK. (ANI)
    Last edited by abdulhakeem; 05-08-04, 10:56 PM.
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    • #3
      Just be content u CAN hve children, be it a son or a daughter.

      You are not aware of the consequences that would result (if you were granted what you desire) because what you seek might be to your detriment. (O soul) be conscious that your Master is more aware about your well-being than you are.

      ~Ibn Al-Jawzee


      • #4
        I dont believe that research... cos it sounds silly & plus it kinda gives the impression that boys are better than girls
        Anyway, I dnt thnk u can control if you have a boy or a girl by thinking of your life expectancy, and whats the point?! its only down 2 Allah if you have a boy, or a girl, and its only down to Allah what your life expectancy is gonna be.....
        .: Anna :.


        • #5
          Forget meat and moons. To give birth to a boy you need a live-in man

          Alok Jha, science correspondent
          Wednesday October 20, 2004
          The Guardian

          The old wives' tale has it that women who want to have sons should eat meat and salty food or make love standing up during a quarter moon. But the real answer for women could be a lot simpler than that: just make sure you are living with your partner.

          An American doctor has found that women are more likely to give birth to boys if they are married or living with a man at the time of conception. The results are the first evidence that living arrangements can affect the human sex ratio at birth, and could explain the fall in the number of boy babies in some developed countries in the past 30 years.

          "When parents were living together before the birth of one child, that child was 14% more likely to be male than when the parents were not living together before the birth," said Karen Norberg, a clinical associate at the National Bureau for Economic Research in the US and the author of the study.

          The results of the research, which sampled 86,436 births, were unexpected. "It's a theme that many people have looked at so it was a surprise to find something that hadn't been found before," Dr Norberg said.

          What is behind this curious result is something of a mystery. It is certainly not an effect of any bias from parents against daughters and is not affected by the parents' age, education, income or ethnicity. It also does not vary by year of observation. "It's likely to be the result of processes that are set in motion by natural selection," Dr Norberg said. "It may have to do with the timing of intercourse at conception. It could be something to do with modern exposure, it could be due to some unknown side-effect of modern contraception."

          In 1874, Charles Darwin reported a lower percentage of boys among births occurring outside marriage, and studies in modern Kenya have found a lower percentage of sons among married women who shared their husband with other women. "In addition, there has been a small, previously unexplained decline in the sex ratio at birth in the US, Canada and Great Britain, over a period of time that has also been marked by a rise in single-parent births," Dr Norberg said in the paper.

          She said her results could also confirm a biological concept known as "sexual allocation theory", which explains why male and female offspring are normally so close to being equal across all living organisms.

          One of the predictions of the theory is that if one sex benefits more from a particular environmental condition, then parents are likely to produce more of that sex. If it is true that sons benefit from fathers - and Dr Norberg said there was some anecdotal evidence to uphold this claim - then it might make sense for sons to be produced if the father is likely to be around.

          This prediction has already been confirmed in some birds, such as the great reed warbler, the oriental reed warbler and the yellow-headed blackbird, according to Dr Norberg. Studies have found a lower proportion of sons among the offspring of females whose male partners do not stay around to bring up their young.

          Dr Norberg's work is published today in the Proceedings of the Royal Society B: Biological Sciences

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          • #6
            When if one of them receiveth tidings of the birth of a female, his face remaineth darkened, and he is wroth inwardly.
            ith shame does he hide himself from his people, because of the bad news he has had! Shall he retain it on (sufferance and) contempt, or bury it in the dust? Ah! what an evil (choice) they decide on?

            My toughest fight was with my first wife.

            Muhammad Ali Clay