Mobile
radiation causes no health risk: WHO
Mobile towers and mobile phone radiations have no health
risks and do not cause cancer, a World Health Organisation (WHO) expert said on
Thursday.
‘WHO studies have already proven that mobile phones do not
affect human health. Cancer or brain tumour apart, it doesn’t cause even
headaches or sleep disorder,’ said radiation expert Michael Repacholi, the
first co-ordinator of WHO’s radiation and environmental health unit.
Talking at the launch of the book ‘Mobile Phones and Public
Health – Myth and Reality’ here, Repacholi added: ‘A person absorbs five times
more radio frequency (RF) from FM radio or television than the base station
tower. Mobile tower radiation is lower compared to RF emissions from radio FM
or television.’
He also dismissed the views that mobile radiation levels
higher than the prescribed limit can have ill effects on human health.
The book’s editor Ravi V.S.Prasad said: ‘Scientific studies
from all over the world failed to prove any adverse effects from use of mobile
phones and towers. Their energy emissions are one-thousandth of the energy from
sunlight, and so can’t impact on health.’
Prasad also highlighted that the Indian standards are ten
times more stringent than the already strict international norms, which in turn
are one- fiftieth of the level at which there can be any impact on health.
Source: http://health.india.com
06.12.2013
High multiple births due to
fertility treatments: Study
More than
a third of twin births and more than three-quarters of triplets or higher-order
births in the US are the result of assisted reproductive technologies, a new
finding says.
The
researchers from Brown University gathered data on multiple births from 1962 to
1966 before any medical fertility treatments were available and from 1971
through 2011, when data on in vitro fertilization (IVF) procedures were
available.
They found
that the contribution of fertility treatments over the past 40 years is clear:
Between 1971 and 2011, the proportion of US multiple births rose to 3.5 percent
from 1.8 percent.
Even after
adjusting for maternal age, the rate of twin births rose 1.6 times between 1971
and 2009, Xinhua quoted the researchers as saying.
However,
the proportion of triplets or more related to fertility treatments has actually
dropped from a peak of 84 percent in 1998 after IVF guidelines discouraging
implantation of three or more embryos took effect that year, researchers at
Brown University said on Wednesday.
Some
mothers and couples may hope for twins through fertility treatments, but more
often multiple births are not desired, said senior author Eli Adashi, professor
of obstetrics and gynecology at Brown University.
‘We do
have a real problem with way too many multiple births in the US with
consequences to both mothers and babies,’ Adashi said in a statement.
While
multiple births from IVF are a direct result of the number of embryos that are
fertilized and intentionally implanted, non-IVF therapies involve medications
that stimulate ovulation and follicle growth in ways that cannot be precisely
predicted or controlled, the researchers said.
‘IVF is
moving, in a sense, in the right direction and cleaning up its act, whereas the
non-IVF technologies are at a minimum holding their own and possibly getting
worse,’ Adashi said.
‘From a
policy point of view what that means is that (we) need to focus on the non-IVF
technologies, which really hasn’t been done in a concerted way because they
weren’t considered all that relevant to this mix.’
The
findings were published in the US journal New England Journal of
Medicine.
Source: http://health.india.com
06.12.2013
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