Autor: Isabel Oakeshott Fuente: Femail.co.uk

Fertility clinics have won top level backing to use ovarian tissue from the dead for IVF treatment.
Experts want to create a donor card scheme so they can use body parts from young women killed in accidents to create artificial eggs for the childless.
The Human Fertilisation and Embryology Authority, the watchdog which regulates fertility treatment in Britain, today said - in a major U-turn - it would back the move.
But the plan, which would create babies whose mothers were dead before they were even conceived, was immediately condemned by reproductive ethics groups.
They warned that infants born thanks to dead donors would be 'genetic orphans' and called for the card scheme to be scrapped.
Thousands of childless couples in Britain need healthy eggs from donors for fertility treatment. Fertility clinics are desperate to boost the supply, with many pinning their hopes on scientific advances in creating man-made eggs from ovarian tissue.
An HFEA spokeswoman told the Standard: "Because there is such a long waiting-list, any move that increased the number of donor eggs would be a positive step. Obviously, donors would have to have given fully informed consent. But a lot of people stand to benefit."
Dr Ivan Huang of the University of Utah, who led a debate on the issue at a fertility conference in America today, said: "Ten years ago, this would never have been considered anything other than science fiction.
"But there are such rapid advances in this field that it is clear it will become a reality.
"We will soon be able to use donated ovarian tissue to help childless women have babies. We need to tackle this issue now."
Clare Brown, director of the infertility charity Child, said: "If there are ways of reducing the shortage of eggs, they need to be seriously considered.
"I don't think we should disregard this idea."
But Josephine Quintavalle of the pro-life group Core said: "We do not believe children should be conceived posthumously.
"Children need mothers and fathers and you cannot consider a dead donor a real mother."
Moves to use ovarian tissue from dead women for fertility treatment sparked outrage when first mooted almost 10 years ago.
A public consultation on the issue by the HFEA in 1994 attracted 900 responses - with only five per cent supporting the move. The HFEA concluded that it would only be acceptable to use ovarian tissue from live donors.
Although the HFEA has yet to make an official decision this time, it seems highly likely that these guidelines will be changed.
Under the controversial plan, tissue would only be taken from young women carrying donor cards specifying that their ovaries could be used in such a way.
• Women have have been warned that stress could damage their chances of conceiving.
Experts have found new evidence that tension and anxiety can affect fertility.
The powerful link between psychology and fertility emerged after researchers analysed results for 400 IVF patients at the Cornell Medical Centre in New York following the September 11 attacks.
While the pregnancy rate before the atrocity stood at 60 per cent, it slumped to 40 per cent in its wake.
The number of women who became pregnant but later suffered miscarriages also soared.
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