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Male infertility treatment overused, scientists warn
IVF clinics are using a radical male infertility treatment too often despite the long-term risks to the babies conceived, one of the technique's pioneers says.
Happy people 'have fewer heart attacks'
Researchers at Columbia University found happier people were less likely to develop serious heart problems.
Cooking with gas raises risk of lung cancer - study
The aroma of your steak frying may set your tastebuds tingling - but it may also give the chef cancer, especially if they are using a gas cooker.
Secret of youth may be in your genes
Scientists have found that people who inherit two copies of a particular DNA variant show the biological signs of being about eight years "older" than people of the same age who carry neither genetic variant.
Millions wasting their time trying to get fit, says study
Millions of people who strive to keep fit by jogging, swimming or going to the gym are wasting their time, scientists say.
<i>Jim Hopkins:</i> Scientist's racy novel turns up the heat
The worlds of climate change and steamy sex collide ... and a classic is born.
Scientists read the minds of the living dead
Scientists have succeeded in reading the mind of a man thought to have been lacking all awareness after a traumatic head injury.
You don't have to be bipolar to be a genius - but it helps
Scientists have for the first time found powerful evidence that genius may be linked with madness.
<I>Lancet</I> withdraws paper on MMR vaccine-autism link
Medical journal's editors retract paper 12 years after it was published, saying several of its elements are "incorrect".
Moa 'flew from South America'
Ancestors of NZ's extinct flightless bird, the moa, probably flew here from South America and then lost the ability to fly home.
Scientist defends climate report despite slip-ups
A report by the UN's expert panel on climate change, which is under fire for the sourcing of its information, has been defended by a NZ scientist.