Over
the past 30 years women have been electing to have babies later in life,
despite the fact that fertility begins to decrease after the age of 28
(Destiny, September 2014).
According
to Professor Igno Siebert, reproductive medicine specialist at the Vincent
Pallotti Hospital in Cape Town, South Africa, 60% of women at fertility clinics
around the world are over 36 years. He says they come to the clinic to increase
their chances of conceiving as they are running out of biological time. He says
most of the women are fit and healthy. So what is the issue? It’s their eggs,
he says. “Age plays a major role in egg quality and the increase in chromosomal
abnormalities … as do lifestyle factors, such as smoking, drinking, and being
overweight.” Egg quality starts to deteriorate between the ages of 28-30, with
a major drop at 40-41. By the age of 43, the live birth rate is less than 7% -
and therefore donor eggs are considered when wanting to conceive. Freezing eggs
is also a possibility for many women after 30 years who want to have a child,
but for good quality the eggs should be frozen when a woman is in her late 20s.
Are
their any disadvantages for the mother or child when delaying motherhood? Mandy
Rodrigues, a Johannesburg clinical psychologist, maintains that there are both
physical and emotional downsides to later motherhood. As well as emotional
pressures from relatives, friends, work peers, and acquaintances, physical
downsides include high blood pressure, diabetes, risk of miscarriage, and chromosomal
abnormalities.
But
there are many advantages to later motherhood. Women may be more financially
secure, more realistic and knowledgeable about what having a child entails, more
patient and tolerant, and likely to be less stressed.
And
there’s more … a seven-year American study in the 1980s of more than 50,000
children found that the older the mother, the higher the child’s intelligence
quotient (IQ). Scientists are not quite sure why, although they speculate that
it was associated with “age-related attributes [of the mother] like wisdom,
judgement, restraint, and economic security.”
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