A slew of gastroenteritis outbreaks have landed almost 2000 people in NSW emergency departments in the past week, health authorities say.

Jessica Sheehan is 18 but she lives with a disease that is often described as "childhood Alzheimer's".

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Doctors are trying to cut back on tests and treatments that are unnecessary, a waste of time and money, and potentially harmful.

With 22 per cent of children considered overweight or obese, the NSW chief health officer is urging parents to increase vegetable consumption.

The rise of superbugs has seen global health experts urge farmers to limit antibiotic use. But one salmon company says diseases have forced it to increase the dosage over the past few years.

Flu rates in NSW have soared to record proportions in 2017, with more than 8000 people presenting in the past week alone.

The controversial series 13 Reasons Why triggered an increase in Google searches for specific methods of suicide and suicide hotlines.

Fiona Murray has donated her liver, but not to another person.

An alarming rate of violent suicides and heart disease have been linked to methamphetamine use.

American scientists have successfully edited the DNA of a human embryo in an attempt to correct genes that cause inherited diseases, a report says.

We are seeing a major shift in the development of children, particularly girls. We cannot afford to ignore it and hope it will go away.

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More than 200,000 Australians with hepatitis C will soon have access a new highly effective treatment through the pharmaceutical benefits scheme.

The question of how people use antibiotics is one of the most critical issues facing modern medicine.

''I have learned that you need to think about what you say and filter your words so that you don't hurt others.''

Sexual transmission of HIV in gay men can be prevented through the correct treatment, an Australian study has revealed.

The discovery has raised anew the hope that early treatment may allow an infected person's immune system to defeat the virus.

Behind the world's most ambitious effort to treat depression, anxiety and other common mental illnesses.

Health groups are urging food companies to disclose added sugars on product labels, saying this will lead to more accurate health star ratings and win back consumer trust.

IVF doctors will be able to provide women helpful statistics about their chances of giving birth based on their age and the number of treatment cycles.

More Australians are dying from painkiller overdoses each year, and calls are growing for governments to act.

As male-dominated medical specialties are plagued by sexual harassment allegations, female doctors are flocking to general practice.

Industry plating up pleasure for patrons is a melting pot of mental boiling points for staff.

Warning for anyone who has been to the Sydney CBD and Leichhardt to watch for measles symptoms

Australia's psychiatrists have broken ranks with the medical fraternity and begun calling on the government to lift the ban on e-cigarettes.

Ethan Wright took off his helmet for a few seconds to record a trick. Instead of landing on his feet, he catapulted into concrete.

A critically drug-resistant strain of gonorrhoea dubbed a "super- superbug" has been detected in every Australian state and territory by a new national surveillance system.

Parents are concerned about smokestacks that may be built near their children's schools in North Sydney.

Paramedics and emergency departments in Sydney's south-west have been inundated by huge numbers of sick patients, causing major delays in ambulance transfers and hospital admissions.

Medical students want public universities banned from the "money-grabbing" practice of offering domestic full-fee-paying places for medical degrees.