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.

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Can collagen supplements keep your skin supple?

We live in a world full of influencers pushing us products promising to keep us looking bouncy and youthful forever. Collagen is a hugely important protein that does play a role in plumping up our skin — as well as supporting muscles, bones and connective tissues. Norman and Tegan find out how effective collagen supplements are in skin care, and which kind you should look out for if you want to see results. What's That Rash? is on YouTube! Subscribe to ABC Science to watch the podcast. References: Decreased Collagen Production in Chronologically Aged Skin Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis Oral Collagen Supplementation: A Systematic Review of Dermatological Applications The impact of collagen protein ingestion on musculoskeletal connective tissue remodeling: a narrative review

19 min
19 NOV

Are mobile phones giving us cancer?

These days, our mobile phones are rarely far away. Whether it’s in your hand, your pocket, or under your pillow at night. Mobiles do emit radiation in order to connect to phone towers, which enables us to stay in contact with people and the internet. But is that radiation doing us harm? Norman and Tegan talk through the facts – what we do know, don’t know and suspect about our tech companions. What's That Rash? is coming to YouTube! Keep an eye out for the video version of this episode on ABC Science. References: National Cancer Institute - Cell Phones and Cancer Risk Mobile phone use and incidence of brain tumour histological types, grading or anatomical location: a population-based ecological study Has the incidence of brain cancer risen in Australia since the introduction of mobile phones 29 years ago? 5G: the new generation of the mobile phone network and health

19 min
12 NOV

Should you be avoiding nightshades?

Why are people with arthritis being told to stop eating potatoes, tomatoes and egg plants? Vegetables in the nightshade family have been under scrutiny for decades, but the fad of cutting them out of our diets has seen a recent resurgence. Norman and Tegan investigate where all this shade comes from, and whether there's any evidence to support it. References: Deadly Nightshade: A Botanical Biography Flavonoids, alkaloids and saponins: are these plant-derived compounds an alternative to the treatment of rheumatoid arthritis? A literature review Risk assessment of glycoalkaloids in feed and food, in particular in potatoes and potato-derived products α-Solanine attenuates chondrocyte pyroptosis to improve osteoarthritis via suppressing NF-κB pathway Antioxidants in Potatoes: A Functional View on One of the Major Food Crops Worldwide

14 min
5 NOV

Is NAD+ a miracle anti-ageing supplement?

We've been searching for a fountain of youth for millennia. How can we not only live longer, but live healthier for longer? Nicotinamide adenine dinucleotide (NAD) is the latest anti-ageing candidate under the microscope. Norman and Tegan explain what it is, and whether supplements promising to boost NAD actually do what's advertised on the bottle. References: NAD+ metabolism and its roles in cellular processes during ageing NAD+ in Brain Aging and Neurodegenerative Disorders What is really known about the effects of nicotinamide riboside supplementation in humans Dietary Supplementation With NAD+-Boosting Compounds in Humans: Current Knowledge and Future Directions The use of a systems approach to increase NAD+ in human participants Specific ablation of Nampt in adult neural stem cells recapitulates their functional defects during aging

18 min
29 OCT

How medical mysteries fed monster myths

Vampires and werewolves and zombies, oh my! Where did all these monsters come from? Undiagnosed medical conditions might have fuelled the mythology behind some of these creatures. Norman and Tegan delve into why vampires drink blood, why werewolves howl at the full moon and how a hex might have its intended effect. References: ABC's FrankenScience: Can Vampires Get Syphilis? and Witchcraft or Just a Placebo? All in the Mind: What's behind a paranormal experience? Porphyria and Vampirism—A Myth, Sensationalized Moon and Health: Myth or Reality? The undead in culture and science Reversibility of apoptosis in cancer cells Medical practice and placebo response: an inseparable bond?

18 min
22 OCT

Can't stop sneezing? What to do when hay fever hits

It’s hay fever season, and as you sniffle away next to an air purifier, you might be wondering why we haven’t cured such a common ailment. Allergic rhinitis, as it’s scientifically known, has plagued people for generations. It's thought up to 24 per cent of Australians suffer from it. Norman and Tegan run through what hay fever is, how we identified it and what can be done to treat it. References: Allergic Rhinitis: A Review O Rose thou art sick… history of allergic rhinitis I’m considering allergen immunotherapy for my hay fever. What do I need to know? Ingestion of honey improves the symptoms of allergic rhinitis: evidence from a randomized placebo-controlled trial The Potential use of Honey as a Remedy for Allergic Diseases: A Mini Review Can you adapt to allergies or does the dog have to go?

18 min
15 OCT

What on earth is grounding?!

Many of us are disconnected from nature – we live in cities, work in offices, exercise indoors. There is a hypothesis that our disconnection from the earth itself – the ground – is causing a range of illnesses. But the people selling this hypothesis are also trying to sell you a range of expensive products. Norman and Tegan debunk a pseudoscience that has been gaining traction. References: Electrical Grounding Improves Vagal Tone in Preterm Infants Associations between Nature Exposure and Health: A Review of the Evidence

17 min
8 OCT

MSG's messy myths and racist tropes

Monosodium glutamate (MSG) is a flavour enhancer that often gets a bad wrap. You might know someone who swears it makes them sick, or you yourself might steer clear of foods unless they have that 'no added MSG' label. Norman and Tegan explain why the bad PR around MSG has more to do with shonky research and misconceptions than the ingredient itself. References: MSG in food - Food Standards Australia and New Zealand A review of the alleged health hazards of monosodium glutamate Monosodium glutamate sensitivity in asthma Chinese-Restaurant Syndrome - New England Journal of Medicine

19 min

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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.