What's That Rash?

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Tonsils, appendix, gallbladder: is anything actually useless?

You might know them as "vestigial" organs, but we no longer overlook organs that aren’t vital for life. While they can be removed, your tonsils, appendix and gallbladder play important roles in the body. Norman and Tegan define what "vestigial" actually means, and how our bodies adapt to losing an organ. References: How Do We Know What Human Organs Do? - JSTOR Daily Tonsils, adenoids and throat infections — do doctors still recommend surgery? - ABC NewsAssociation of Long-Term Risk of Respiratory, Allergic, and Infectious Diseases With Removal of Adenoids and Tonsils in Childhood Influence of Tonsillectomy on Various Disease Outcomes: An Outcome-wide Association Analysis and Mendelian Randomization AnalysisCytokine production in patients with recurrent acute tonsillitis: analysis of tonsil samples and blood - PMC Association of Long-Term Risk of Respiratory, Allergic, and Infectious Diseases With Removal of Adenoids and Tonsils in Childhood - PMC Microbial Composition of Human Appendices from Patients following Appendectomy Long-term impacts of appendectomy associated with increased incidence of inflammatory bowel disease, infection, and colorectal cancerCholecystectomy (Gallbladder Removal)If you enjoyed this episode, check these out! Why do we have wisdom teeth? Can peptides keep you young and buff?Is it OK to exercise when you're sick?

20 мин.
21 АПР.

Should you be eating more fruit?

Not a fruit lover, but eat plenty of veggies? Ever wondered if skipping that banana might actually matter? We all know a mix of fruit and vegetables is key to a long, healthy life. Norman and Tegan dig into whether eating little or no fruit could actually be bad for you. References: What exactly is a tomato? The difference between fruit and veg - ABC NewsKey statistics and data about child and adult consumption of fruit and vegetables - Australian Bureau of StatisticsFresh fruit consumption and all-cause and cause-specific mortality: findings from the China Kadoorie Biobank Fruit consumption and risk of type 2 diabetes: results from three prospective longitudinal cohort studies Fruit and Vegetable Intake and Mortality: Results from Two Prospective Cohort Studies of US Men and Women and a Meta-Analysis of 26 Cohort Studies The global burden of disease attributable to suboptimal fruit and vegetable intake, 1990-2021: a systematic analysis of the global burden of disease study Fruit and vegetable consumption and all-cause mortality: evidence from a large Australian cohort study A basket of new fruit varieties is coming your way – The Economist Releasing a sugar brake generates sweeter tomato without yield penaltyIf you enjoyed this episode, check these out! What's the best time of day to exercise?Is whitening your teeth bad for you?What are the health benefits of coffee?

20 мин.
14 АПР.

Red and other light therapy — can it work?

If you’re into skincare, you’ve probably been advertised light therapy face masks. These high-tech hockey masks promise to plump up or heal your skin through light – often red, but sometimes yellow, green, blue or even purple. Norman and Tegan go through the rainbow to assess where there's evidence, and where there's not. References: Sweaty sauna bathing for better health - What's That Rash?Near Infrared Photoimmunotherapy: A Review of Recent Progress and Their Target Molecules for Cancer TherapyEffect of NASA Light-Emitting Diode Irradiation on Wound HealingVisible Red Light Emitting Diode Photobiomodulation for Skin Fibrosis: Key Molecular PathwaysUtilization of light-emitting diodes for skin therapy: Systematic review and meta-analysisPhotodynamic Therapy Using HMME for Port-Wine Stains: Clinical Effectiveness and Sonographic AppearanceEffect of Blue Light on Acne Vulgaris: A Systematic ReviewThe efficacy of violet light in the treatment of acneFeatured review: What are the benefits and risks of light therapy for treating atopic eczema?Light therapy for preventing seasonal affective disorderThis episode first aired on December 18, 2024.

18 мин.
7 АПР.

Why are some people right (or left) handed?

What determines whether you’re right or left handed? Is there really such a thing as being ambidextrous? It’s a surprisingly complicated story, and culture comes into play – some people are forced to go against their dominant hand. Norman and Tegan parse through the history of handedness in this live recording at the World Science Festival Brisbane. References: A large-scale population study of early life factors influencing left-handedness The handedness of Kerrs and CarrsThe association between switching hand preference and the declining prevalence of left-handedness with ageStuttering and “Retraining” Left-Handed Children in Mid-Century U.S. Can training to become ambidextrous improve brain function? Brain Size Associated with Foot Preferences in Australian Parrots The Influence of Handedness on the Clinical Presentation and Neuropsychology of Alzheimer DiseaseIf you enjoyed this episode, check these out! Can sudoku really keep your brain younger for longer?Should you train cardio and strength on the same day?The four steps you need to form a habit

19 мин.
31 МАР.

Headaches: causes, cures and exercise?!

Headaches are common, but the causes are wide and varied, and some are more serious than others. Why do we get headaches? What's the difference between a headache and a migraine? Norman and Tegan talk through some basics about headaches, and why a round of squats might help... References: The Science Behind Headaches: What's Really Happening In Your Skull The vascular theory of migraine—a great story wrecked by the factsTwelve-month efficacy of CGRP monoclonal antibodies and predictive value of short-term response: results of an Australian multicentre study Trial of Galcanezumab in Prevention of Episodic Cluster HeadacheErenumab for Chronic Cluster Headache: A Randomized Clinical TrialEffect of Exercise on Chronic Tension-Type Headache and Chronic Migraine: A Systematic ReviewThe effect of different exercise types on migraine frequency in individuals with migraine: A pilot studyIf you enjoyed this episode, check these out! Am I addicted to caffeine?Is emu oil the new snake oil?There's a lot of fog around brain fog

21 мин.
24 МАР.

Is a vibration plate worth the cost?

We've all probably wished for a way to achieve our fitness goals without the strain and sweat that can come with exercise. So what if you could lose weight, gain muscle and improve circulation just by standing on a vibrating platform? Norman and Tegan buzz through the evidence for and against vibration plates and so called "passive exercise". References: Dr Gustav Zander’s Victorian-Era Exercise Machines Made the Bowflex Look Like Child’s PlayThe effects of whole body vibration therapy on reducing fat mass in the adult general population: A systematic review and meta-analyses Whole-body vibration administered during a 3-week in-hospital multidisciplinary body weight reduction program increases resting energy expenditure in obese adolescents, a randomized clinical trial Immediate effects of localized vibration on flexibility: A randomized crossover trial Effects of whole body vibration with exercise therapy versus exercise therapy alone on flexibility, vertical jump height, agility and pain in athletes with patellofemoral pain: a randomized clinical trial Whole Body Vibration as an Adjunct to Static StretchingWhole-Body Vibration Stimulates Microvascular Blood Flow in Skeletal Muscle Whole body vibration training improves leg blood flow and adiposity in patients with type 2 diabetes mellitus Effects of Whole-Body Vibration Training on Lower Limb Blood Flow in Children with Myelomeningocele—A Randomized Trial Effect of localised vibration on muscle strength in healthy adults: a systematic review Whole-body vibration training improves muscle mass and strength in older adults through intra- and extra-muscular pathways The effect of whole body vibration training on quadriceps voluntary activation level of people with age-related muscle loss (sarcopenia): a randomized pilot study Hormonal responses to a single session of wholebody vibration exercise in older individualsHormonal and Metabolic Responses to Whole Body Vibration in Healthy Adults Low-frequency vibrotherapy considerably improves the effectiveness of manual lymphatic drainage (MLD) in patients with lipedema: A two-armed, randomized, controlled pragmatic trial Efficacy of whole body vibration exercise in older people: a systematic review If you enjoyed this episode, check these out! Can you zap yourself buff with electrical muscle stimulation?Do the benefits of creatine go beyond the gym?Do healthy people need lymphatic treatments?

23 мин.
17 МАР.

Should you add snail slime to your skincare routine?

Snail slime, or snail mucin, has become a popular product in skin care. Some claim it has anti-ageing properties, but if the early research shakes out, snail mucus could have even more significant uses. Norman and Tegan discuss why snail gunk has become a hero of cosmetics, and what else it might be capable of. References: Why Snail Mucin? Or, How This Ancient Practice Became a Skin Care SensationChemical composition, mineral profile, anti-bacterial, and wound healing properties of snail slime of Helix aspersa Müller Extraction, structure, pharmacological activities and applications of polysaccharides and proteins isolated from snail mucusAntimicrobial Activities of Different Fractions from Mucus of the Garden Snail Cornu aspersumAntimicrobial efficacy of Egyptian Eremina desertorum and Helix aspersa snail mucus with a novel approach to their anti-inflammatory and wound healing potenciesReviewing The Potential of Snail Extract to Accelerate and Improve Burn Wound Healing: A Literature Review HelixComplex snail mucus exhibits pro-survival, proliferative and pro-migration effects on mammalian fibroblastsThe efficacy of Helix aspersa Müller extract in the healing of partial thickness burns: A novel treatment for open burn management protocolsHelix aspersa maxima mucus exhibits antimelanogenic and antitumoral effects against melanoma cells849 Snail mucus increases the anti-cancer activity of anti-PD-L1 antibody in melanoma Snail Mucus Enhances Chemosensitivity of Triple-negative Breast Cancer Via Activation of the Fas PathwaySnails and Skin: A Systematic Review on the Effects of Snail-based Products on Skin HealthFrom Nature to Nurture: The Science and Applications of Snail Slime in Health and BeautyArtificial Snail Mucus Could Advance Cancer Treatments – Johns Hopkins UniversityIf you enjoyed this episode, check these out! Does anti-ageing skincare actually work?Should you be avoiding perfumes and fragrances?What we do (and don't) know about tinnitus

20 мин.
10 МАР.

Could headphones be damaging our ears?

Walking down the street, most people you pass will be wearing headphones or ear buds. Chances are you are too! But is this trend of noise-cancelling harming your ears or the way your brain processes sound? Norman and Tegan sound out the evidence on headphone use and hearing damage, and what you can do to protect your ears. References: Know Your Noise - National Acoustic LaboratoriesPumping loud music is putting more than 1 billion young people at risk of hearing loss - University of Melbourne A Partial History of Headphones - Smithsonian Prevalence and global estimates of unsafe listening practices in adolescents and young adults: a systematic review and meta-analysis Hearing thresholds, tinnitus, and headphone listening habits in nine-year-old children Do Noise-Cancelling Headphones Help or Hurt Hearing? - University of ColoradoTips for safe listening using headphones and earbuds – Hearing Australia If you enjoyed this episode, check these out! Is there such thing as TOO much sun protection?Is there a cure for jet lag?Don’t Die: Is Bryan Johnson going to live forever?

22 мин.

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Norman Swan

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Tegan Taylor

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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.