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In Depth Articles

Understanding Aggression and Violence: A Risk and Protection Approach

June 01, 2016

Parents and professionals who work with children often face the issue of aggressive behaviour and how to manage it. There are many ways to think about how to address this issue, but one approach that is gaining interest involves looking for ways to reduce the number of influences that increase …

Psychology of a Paedophile: Why are Some People Attracted to Children?

Having worked with police forces in Australia and the United Kingdom identifying those who sexually prey on children, people are always asking me how you can tell a paedophile from everyone else.
Well, I can tell you one thing – they don’t have horns and tails. They look and act like …

The Snapping Hip: Remembering Psoas Syndrome

May 25, 2016

Iliopsoas tendinitis and iliopsoas bursitis are uncommon but important causes of anterior hip or groin pain. Typical causes of this are repetitive overuse of hip flexion and external thigh rotation, and acute injury, such as that involving sudden asymmetrical contraction of the iliopsoas muscle.
“Iliopsoas tendinitis and iliopsoas bursitis are closely …

Are Electronic Cigarettes a Gateway to Adolescent Smoking?

Adolescents are experimenting with electronic cigarettes (e-cigarettes) and there is speculation that this might lead some young people who would not otherwise have smoked cigarettes to progress to smoking (the gateway effect). However, after ten years of experience in other countries where e-cigarettes are widely available, there is no evidence that this is happening. In fact, the opposite may be true, that e-cigarettes are actually diverting adolescents away …

Medicine’s Dirty Secret

May 18, 2016

Bryn Nelson gets to the bottom of an emerging – and often shocking – therapy.
This is how far a mother will go.
Your daughter has been sick for more than four years with a severe autoimmune disease that has left her colon raw with bloody ulcers. After multiple doctors and drugs …

Understanding Sickle Cell Disease

Sickle cell carrier trait is caused by a genetic mutation in one of two inherited β globin genes for the production of the β globin protein in haemoglobin (Hb S).1 If one gene is affected the person is usually healthy, but a carrier of the condition.  If two genes are …

Low FODMAP Diets

May 12, 2016

A diet low in FODMAPs (Fermentable Oligosaccharides, Disaccharides, Monosaccharides and Polyols) means there is a restricted intake of these rapidly fermentable, short-chain carbohydrates. The causal oligosaccharides include fructans and galactans, causal disaccharides include lactose, the causal monosaccharides include fructose, and the causal polyols include mannitol, sorbitol and xylitol. These are small, …

Give an Take: The Ethics of Donating Breast Milk

May 11, 2016

Sharing breast milk is not new, but will rising demand – and supply – change the relationship between milk donors and the mothers whose babies need it? Carrie Arnold reports.
Her milk was the only thing Jen Canvasser could give her babies.
Born at 28 weeks, three months prematurely, Zachary and Micah …

Hard Labour: The Case for Testing Drugs on Pregnant Women

May 04, 2016

Traditionally, expectant mothers have been excluded from clinical trials, but could this practice be doing more harm than good? Emily Anthes investigates.
When the heart stops beating, minutes matter. With every minute that passes before a rhythm is restored, a patient’s odds of survival plummet. Which is why Anne Lyerly was …

Achalasia Update

Achalasia is due to lack of normal oesophageal peristalsis and inability to relax the lower oesophageal sphincter during swallowing. It is a primary motility disorder and the abnormal muscle tone causes a functional obstruction at the gastro-oesophageal junction.  The lower oesophageal sphincter has increased muscle tone in 50% of cases …

Why Do We Have Allergies?

April 27, 2016

For me, it was hornets.
One summer afternoon when I was 12, I ran into an overgrown field near a friend’s house and kicked a hornet nest the size of a football. An angry squadron of insects clamped onto my leg; their stings felt like scorching needles. I swatted the hornets …

Vitamin B12 Deficiency

“The term ‘Vitamin B12’ is usually restricted to cyanocobalamin, which is the most chemically stable and unnatural form of cobalamin, but Vitamin B12 refers to all potentially biologically active cobalamins.”1

Vitamin B12 and folate are cofactors in metabolic processes to do with DNA synthesis in the human body.2  Recommended daily requirements are …