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Polygenic risk scores currently account for only a small proportion of your total genetic risk. Shutterstock

Genetic risk tests are now widely available, but they aren’t always useful – and could even be harmful

Most common chronic diseases are the outcome of complex interactions between genetic, environmental and social risk factors, so a genetic risk score, on its own, isn’t much help.
The leading Democratic candidates to take on Trump (clockwise from top left corner): Pete Buttigieg, Joe Biden, Kamala Harris, Elizabeth Warren and Bernie Sanders. AAP/The Conversation

Two dozen candidates, one big target: in a crowded Democratic field, who can beat Trump?

There’s one reason the US Democratic presidential field is so crowded – a belief Trump can be beaten. Here’s a closer look at the five leading candidates.
Australian Council of Trade Unions (ACTU) President Michele O'Neil (left) stands next to ACTU Secretary Sally McManus. Peter Rae/AAP

Politics with Michelle Grattan: ACTU president Michele O'Neil on John Setka and the government’s anti-union legislation

ACTU president Michele O'Neil on John Setka and the government’s anti-union legislation CC BY33.4 MB (download)
ACTU President Michele O'Neil says that the decision over Setka's leadership lies with the union membership, and denounces the government's plans to bring back anti-union legislation.
You’re not imagining it. Our bodies really do crave macaroni cheese and other comfort foods as the temperature drops. Here’s why. from www.shutterstock.com

Health Check: why do we crave comfort food in winter?

Research into our brain, gut and childhood memories tells us why we reach for macaroni cheese rather than salad in winter.
Mental illness is more common among Aboriginal and Torres Strait Islanders than in the non-Indigenous population. From shutterstock.com

‘Have you been feeling your spirit was sad?’ Culture is key when assessing Indigenous Australians’ mental health

A culturally specific screening tool for depression has been successfully tested among Aboriginal and Torres Strait Islander Australians. This is why it’s so important we start rolling it out.
Experiments performed in microgravity – like this one in the International Space Station by astronaut Samantha Cristoforetti – can give us data not able to be gathered on Earth. NASA

To carve out a niche in space industries, Australia should focus on microgravity research rockets

On Earth the flame from a struck match looks like an inverted teardrop shape and is orange. In microgravity, that same flame is spherical and blue. Heat transfer is different with minimal gravity.
As uncertain as 2019-20 is, The Conversation’s team of 20 leading economists are in broad agreement that the outlook isn’t good. Scott Morrison and Treasurer Josh Frydenberg will also have to deal with the unexpected. Wes Mountain/The Conversation

Buckle up. 2019-20 survey finds the economy weak and heading down, and that’s ahead of surprises

The Conversation’s distinguished panel predicts unusually weak growth, dismal spending, no improvement in either unemployment or wage growth, and an increased chance of recession.
Many women perceive period pain as something they just have to put up with. But the symptoms can be managed. From shutterstock.com

Period pain is impacting women at school, uni and work. Let’s be open about it

Period pain is common, and the evidence shows it can hinder a woman’s performance at school, university and work. To tackle this problem, we need to start talking about it.
John Lander Browne’s hillside house at Church Point might have been Sydney’s first notable postwar interpretation of Frank Lloyd Wright’s organic principles. Max Dupain (c.1948)

How the ‘Sydney School’ changed postwar Australian architecture

Sydney Schools weren’t actually schools, but houses that embraced the native Australian landscape, and reacted to international modernism.