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The gender binary does not adequately describe the experience of people who identify as genderqueer. Black Hill Design/www.shutterstock.com

Explainer: what is genderqueer?

Germaine Greer's comments that "post-operative transgender men are not women" have provoked outcry from transgender activists. So let's have a meaningful discussion about gender, sex and the complex relationship between the two.
Early necrotising fasciitis is easily missed because the symptoms – fever, pain, swelling and tenderness at the affected site – may be non-specific or confused with a mild, superficial infection. Zurijeta/Shutterstock

Explainer: what causes necrotising fasciitis, the flesh-eating bug?

Port Melbourne VFL player Sam O'Sullivan is reportedly recovering in hospital after being infected with the flesh-eating disease "necrotising myositis".
When we speak of writer’s block, we may actually be talking about a ‘creation block’. M Yashna

Coming up blank: the science of writer’s block

The dreaded blank page haunts every writer. But what happens in your brain when you run dry? And, more importantly, what – if anything – can be done about it?
Allergies are becoming more frequent in the western world. Al Fed/Flickr

What are allergies and why are we getting more of them?

Allergies are reactions caused by the immune system as it responds to environmental substances that are usually harmless. But we don't yet have a cure or the ability to prevent them from developing.
Ideally, all states and territories would have consistent laws based on Victorian legislation. Juanedc/Flickr

Explainer: is abortion legal in Australia?

Abortion is a safe medical procedure, yet half of Australian women may have difficulty accessing a termination because they live in states and territories that designate it a crime.
The only thing standing between invaders such as bacteria, viruses, parasites and fungi and our devastation is our immune system. kurtxio/Flickr

Explainer: how does the immune system learn?

The immune system does such a good job most of the time that we only really think about it when things go wrong. But to provide such excellent protection, it must constantly learn.
Cerebral palsy can involve skeletal deformities, muscle stiffness or weakness and uncontrolled movements. arindambanerjee/Shutterstock

Explainer: what causes cerebral palsy and can it be prevented?

The single diagnosis of cerebral palsy covers a wide range of conditions with many different contributing factors that interact in varying ways.
Epilepsy is one of the most common neurological conditions in the world. from shutterstock.com

Epilepsy: sorting the myths from the facts of a common disorder

Saying someone has epilepsy is a little like saying they're ill. Its cause can vary from a brain tumour to an inherited genetic condition, the consequence of injury or a disorder affecting the brain.
Off-label use is when an approved medicine is prescribed for a different reason, at a different dose, or in different patient groups than originally intended. Benny Lin/Flickr

Explainer: why are off-label medicines prescribed?

The off-label use of medicines is not illegal and it doesn't mean regulators have specifically "disapproved" its use. But there are a number of issues to consider before using a medicine off-label.
NASA artists' interpretation of the neutron star Swift J1749.4-2807 (left) with it’s companion star (right). NASA/Goddard Space Flight Center

Explainer: what is a neutron star?

They're are the overachievers of the universe: incredibly dense but very small when compared to others stars. So how much do we know about the extreme behaviour of neutron stars?
Danny Nalliah’s Rise Up Australia is one example of a far-right, ‘moralistic’ party that has sprung up in recent years. AAP/Joe Castro

Explainer: Australia’s tangled web of far-right political parties

Far-right movements and parties in Australia will continue to create interest, given their policies and method of operation. Their future longevity, however, is by no means assured.
Insulin, which is used for controlling diabetes and has been in the market for 30 years, was the first biologic. Yusmar Yahaya/Flickr

Explainer: what are biologics and biosimilars?

Biologics are widely accepted as the most effective way of treating certain diseases. They have become the fastest-growing class of therapeutic compounds, with about 300 now available for human use.

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