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What's That Rash?

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Get answers to the health questions everyone's asking. Our experts give you the information you need to feel good and make the best decisions for your brain and body.
334 Episodes
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Restless Legs Syndrome is a common condition with somewhat mysterious underpinnings…While it can be a side effect on an underlying condition, many people suffer for no known reason.Norman and Tegan take us through what we know, what we suspect and some of the treatments for those jittery legs…References:Iron and restless legs syndrome: Treatment, genetics and pathophysiologyIron-deficiency and dopaminergic treatment effects on RLS-Like behaviors of an animal model with the brain iron deficiency pattern of the restless legs syndromeThe Management of Restless Legs Syndrome:An Updated AlgorithmGot a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!
Kate Middleton announced via a video message that she is undergoing treatment for cancer. The Princess of Wales has been out of the public eye since Christmas. This is the first official announcement about her condition since she revealed she would be undergoing planned abdominal surgery in January. So what What do we know about Kate's cancer diagnosis? What is the likely treatment? And, given she is relatively young, what's the message for people who do have unexpected new symptoms?What is preventative chemotherapy? What could treatment look like? What are some of the side effects of chemotherapy? How long does it take to recover from? We're answering the health questions everyone's asking on What's That Rash?
Did you know that we're evolutionarily predisposed to seek out sweet treats?Simple carbs were harder to come by in caveman times than they are today. Now, the consensus is we all need to cut down our sugar intake.One way people are doing that is by replacing their sucrose with non-sugar sweeteners.Norman and Tegan explore whether this is actually a healthy alternative.References:Sweetness and food preferenceHealth effects of the use of non-sugar sweeteners: a systematic review and meta-analysisThe World Health Organisation on aspartame, and dietary guidelines
Although it’s often thought of as an adolescent affliction, acne can affect people well into adulthood.But some people seem to be immune to pimples. Why?Norman and Tegan investigate why some people are more prone to pimples than others, and what you might be able to do about it.Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences:Racial Differences in Clinical Characteristics, Perceptions and Behaviors, and Psychosocial Impact of Adult Female AcneThe association between stress and acne among female medical students in Jeddah, Saudi ArabiaSeasonal aggravation of acne in summers and the effect of temperature and humidity in a study in a tropical settingEnjoyment of watching pimple popping videos: An fMRI investigation
Some people are mosquito magnets. The blood suckers do, in fact, have their favourites. And this could pose a major health risk. After all, mosquitoes are the deadliest creatures on earth. Norman and Tegan take us through the science of why some people attract more mozzies than others. Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences:Mosquitoes use vision to associate odor plumes with thermal targetsOlfactory responses and field attraction of mosquitoes to volatiles from Limburger cheese and human foot odorComposition of Human Skin Microbiota Affects Attractiveness to Malaria Mosquitoes
What's That Rash? is coming to the World Science Festival Brisbane!Bring yourself (and your non-communicable rash) to a live podcast recording with Dr Norman Swan and Tegan Taylor. We've got two double passes to give away to the Social Science event on March 22 for those who'll be in Brisbane.Send us your questions for a chance to win. AND it's an adults-only event with mature content and coarse language, so go wild —  thatrash@abc.net.auWe're not the only ones attending. All in the Mind will also be doing a live show, and Dr Karl will be there for some Great Moments in Science!
Have you ever been told to 'listen to your body' when it comes to fitness?It makes sense. You shouldn't push through injury, or past the point of exhaustion.But how far is too far? There are now dozens of apps and hundreds of advice columns on how best to 'listen to your body'.One strategy that's rising in the ranks is adjusting your workout routine to work alongside your menstrual cycle.Norman and Tegan explore whether this kind of tech is advancing faster than the research.References:Effects of the Menstrual Cycle on Exercise PerformanceThe Efects of Menstrual Cycle Phase on Exercise Performance in Eumenorrheic Women: A Systematic Review and Meta‑AnalysisBidirectional Interactions between the Menstrual Cycle, Exercise Training, and Macronutrient Intake in Women: A Review
The only time most of us think about wisdom teeth is when they’re causing trouble.Do they have a use beyond causing pain (and leaving you with a hefty dental bill)?Norman and Tegan talk through the history of these meddlesome molars, and what happens when you ignore them.Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences: Surgical removal versus retention for the management of asymptomatic disease‐free impacted wisdom teethPrevalence of Third Molar Agenesis: Associated Dental Anomalies in Non-Syndromic 5923 PatientsChildhood diet may contribute to impacted wisdom teeth, research shows
Let's say you're a pretty healthy person. You have a balanced diet, exercise regularly and don't have any health issues. A multivitamin can only help, right?Not necessarily. There are lots of multivitamins out there, catering to different circumstances.Norman and Tegan take us through the evidence for (and against) taking these catch-all supplements.Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences: Should I Take a Daily Multivitamin?Dietary antioxidants and primary prevention of age related macular degeneration: systematic review and meta-analysisDietary flavanols restore hippocampal-dependent memory in older adults with lower diet quality and lower habitual flavanol consumption
Thousands of Australians see a chiropractor for relief from back pain, headaches or stiffness.There has been a level of controversy surrounding the profession since its inception in the 19th century.But looking beyond the field's storied history, where does the evidence stand now on chiropractic?Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences: Evidence-Based Practice and Chiropractic CareBenefits and harms of spinal manipulative therapy for the treatment of chronic low back pain: systematic review and meta-analysis of randomised controlled trialsAnatomical Sciences in Chiropractic Education: A Survey of Chiropractic Programs in AustraliaA Phase 3 Randomised Trial of Nicotinamide for Skin-Cancer Chemoprevention
There are so many weird and wonderful skin potions out there, promising to fend off or reverse the signs of ageing.But do they work? And if so, how do they work?Norman and Tegan take us through their skincare routines (and some evidence, of course).Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences: Genetics and skin ageing - Dermato-EndocrinologyRetinoids: Active molecules influencing skin structure formation in cosmetic and dermatological treatmentsRole of antioxidants in the skin: Anti-ageing effects
Night terrors are distressing awakenings of intense screaming, thrashing and fear that often happen at the same time each night. They're more common in children than in adults, but they can hang around or emerge later in life. Norman takes us through his own childhood night terror, and Tegan weighs in on some of the reasons they happen in the first place. Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences: Night Terrors: Clinical Characteristics and Personality PatternsAn evolutionary perspective on night terrors
Have you ever been chastised for eating a bowl of cereal for lunch? Or having leftovers for breakfast?There are certain foods designed 'breakfast foods' in the collective imagination: eggs, toast, cornflakes, pancakes. But the stories of how they came to earn their morning timeslot are far from science-based. Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences: Is breakfast the most important meal of the day? Bath Breakfast ProjectTowards an Evidence-Based Recommendation for a Balanced BreakfastBreakfast skipping and timing of lunch and dinner: Relationship with BMI and obesity
No pain, no gain — right?Well, if you're looking to build muscle, not necessarily. Chasing discomfort might even slow you down. Norman and Tegan discuss delayed-onset muscle soreness, and why it's not always indicative of a good workout. Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences:Delayed Onset Muscle Soreness and Critical Neural Microdamage-Derived NeuroinflammationPost Orgasmic Illness Syndrome (POIS) and Delayed Onset Muscle Soreness (DOMS): Do They Have Anything in Common?Effects of Descending Stair Walking on Health and Fitness of Elderly Obese Women“The Glorious Pain”: Attaining Pleasure and Gratification in Times of Delayed Onset Muscle Soreness (DOMS) among Gym Goers 
Because of the country's high UV levels, Australians hear a lot about the risks of sun exposure. But there are some benefits too. Sunlight enables us to produce vitamin D for strong bones and immune function. But there are other ways rays can help our health. Norman and Tegan take a look at how the right dose of sunlight can be beneficial. Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences:The effect of sunscreen on vitamin D: a reviewSanatoria revisited: sunlight and health  
Pet allergies can range from mild to severe — from a nuisance to, occasionally, anaphylaxis. When all you've got is some itchiness and a runny nose, are you doomed to a life without a furry friend?Norman and Tegan discuss the possibility of building up a tolerance to allergens.  Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences: Dog ownership at three months of age is associated with protection against food allergySensitisation, asthma, and a modified Th2 response in children exposed to cat allergenSpecific gut microbiome signatures and the associated pro-inflammatory functions are linked to paediatric allergy and acquisition of immune tolerance 
It's holiday season, and family feasts are inevitable. But is the post-feast nap also inevitable?Norman and Tegan explain why you get so tired after a big meal. And no ... it has nothing to do with being around your extended family.Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health Report
Binaural beats are a phenomenon that happens in your brain when you listen to two different tones in each ear. There are lots of claims surrounding them — that they can trigger different brain waves and promote different states of mind. Norman and Tegan are here to unpack whether there's any evidence this musical illusion can aid with concentration. Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences:Reverse effect of home-use binaural beats brain stimulationPilot feasibility study of binaural auditory beats for reducing symptoms of inattention in children and adolescents with ADHDBinaural beats reduce feeling of pain and discomfort during colonoscopy procedure in not-sedated patients
Caffeine is a part of many people's routines, whether it be a shot of coffee or a cup of tea. If you've ever noticed a headache creeping in when you've missed your morning cup of joe, Norman and Tegan are here to explain why. Got a health question? Shoot us a line @ABCHealth on Instagram, or send a voice memo to thatrash@abc.net.au. We'd love to hear from you!Looking for COVID-19 updates? Don't panic, they've moved over to The Health ReportReferences:Adenosine, caffeine, and sleep–wake regulation: state of the science and perspectivesCaffeine for headaches: Helpful or harmful?Caffeine in the management of patients with headache
Napping can be risky. Will you wake up feeling better or worse?There's no doubt that sometimes an afternoon snooze is an absolute necessity. Norman and Tegan explore what's going on when you nap, and what you can do to get the most benefit.References:Influence of mid-afternoon nap duration and sleep parameters on memory encoding, mood, processing speed, and vigilanceLifestyle mediators of associations among siestas, obesity, and metabolic healthEffects of planned cockpit rest on crew performance and alertness in long-haul operations
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Comments (53)

Michael

Thanks for the very useful information in these podcasts. There have been numerous times I've stood out by knowing what I'm talking about by essentially regurgitating this podcast verbatim. We are lucky to have scientists who communicate this stuff to us 🙏✌️

Jul 20th
Reply

Caz S

Thank you so much! I love how informative your podcasts are. Keep them coming!

Feb 7th
Reply

ezzie83

thank you for coming back!!

Jan 7th
Reply

Melanie Angel

Thank you so much Norman and Tegan. You have been my worry-ometers over the past two years. Have a great Christmas :)

Dec 17th
Reply

John

Recent Coronacast episodes seem to be playing at high speed. Anyone else noticing this?

Oct 7th
Reply

Alex K.

So you're telling me in this episode that one of your listeners wrote in and said "we followed all the rules but we're not getting anything in return". I must say I disagree. What they are getting in return (for being vaccinated, which I presume this listener is), is a non‐premature death!

Aug 27th
Reply

Lule Smith

has Dr Norman heard of Dr Bryam Bridle viral immunologist from the university of Guelph. my mother in law sent me a recording of an interview he did raising new concerns on the messenger RND vaccines. Is this just more scaremongering and does new research still show less risk in vaccines than actual virus?

Aug 9th
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Michael Stefanini

why has this been speed up it is hard to understand.

Aug 3rd
Reply (1)

Lia Mitchell

Not just Melbourne, the entire state of Victoria. It is getting harder and harder to stomach.

Jul 16th
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John

Coronacast question. Hi Teagan and Dr Norman. Thanks for all your work. My question is," How effective is full vaccination with Astra Zeneca against getting serious illness from Delta variant?"

Jun 4th
Reply

Tanya Gwillim

hi coronacast team, love your show, have listened to nearly every episode from nz

May 19th
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Sandra Pearce

I have listened to every single episode of coronacast, thank you so much for keeping us informed! I am 55 and very happy to be vaccinated, but I have really bad varicose veins in one of my legs, does that make me more susceptible to blood clots ?

May 17th
Reply

Malcolm Scott

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)00628-0/fulltext AZ vaccine 29% effective against asymptomatic covid19 b117 patients (British variant). What i think they are saying in the study is that the AZ vaccine will allow asymptomatic spread to continue thru the community. That vaccine is now dead in the water.

Mar 31st
Reply

Brendan Moelands

i have met so many people that have no interest in this vaccine....im now hearing theres different strains? how does the magic needle know which one you are protected from?

Mar 13th
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Alex K.

people squeamish about needles, are you kidding me? GROW UP YOU SPOILT BRATS!

Mar 8th
Reply

sunset painting

as you said, a little cruel your comment about smokers. they do not ‘want’ to kill themselves that is an illogical and horrid thing to say. it is an addiction that is harder to stop than heroin and many try over and over to stop snd feel immense shame at not being able to. i do not smoke myself but knoe many that struggle to quit. smokers are often people that have either started when they were yound and didn’t know better then were already addicted, or have serious anxiety and it helps them relax-for many, feeling less anxious trumps the health concerns because the anxiety is so difficult.

Feb 3rd
Reply

behdad nikoueian shirvan

keep on casting please. i like your records.

Jan 23rd
Reply

James Franklin

😃

Dec 24th
Reply

Kylie Munson (Red Star Sport Horses)

n89ok91 ki o oo

Oct 21st
Reply

Alanna Clare

Someone got in trouble

Oct 14th
Reply
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