Researchers at Columbia University found happier people were less likely to develop serious heart problems.

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.

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 of people who strive to keep fit by jogging, swimming or going to the gym are wasting their time, scientists say.

The worlds of climate change and steamy sex collide ... and a classic is born.

Scientists have succeeded in reading the mind of a man thought to have been lacking all awareness after a traumatic head injury.

Scientists have for the first time found powerful evidence that genius may be linked with madness.

Medical journal's editors retract paper 12 years after it was published, saying several of its elements are "incorrect".

Ancestors of NZ's extinct flightless bird, the moa, probably flew here from South America and then lost the ability to fly home.

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.

NZ researchers may have discovered a breathrough for reducing greenhouse gas emissions.

WeatherWatch analyst Philip Duncan puts readers' 10 most commonly asked climate change questions to Niwa's Dr James Renwick.

Scientists are investigating a possible link between a rare degenerative nerve disease and a toxic gas blamed for four Nelson port workers 'deaths.