KYTOS Biology

ADHD is diagnosed far more often than it was twenty years ago, yet arguments continue over whether it is being overdiagnosed, underdiagnosed, medicalised, misunderstood or all four at once. This episode separates screening from diagnosis, genes from environment and treatment from internet mythology, asking what current neuroscience and population data really tell us about one of the most debated n...

Christopher Nolan's new adaptation has pushed Homer's Odyssey back into the spotlight, but behind the gods and monsters is a surprisingly rich set of biological questions. Could a giant Cyclops support its own weight? What would it actually take to turn a human body into a pig while leaving the mind intact? Could a song really override self-preservation, and could a six-headed vertebrate e...

Through doping, we now fully understand the use by athletes of substances prohibited by the anti-doping agencies in order to gain a competitive advantage. Since sport plays an important role in physical and mental education and in promoting international cooperation, the widespread use of doping products and methods has consequences not only on health of the athletes, but upon the image of sport m...

Bipolar disorder is often misunderstood as emotional volatility, but beneath its surface lies a profound biological complexity involving neurotransmitters, genetics, circadian rhythms, and even cellular energy systems. In this podcast, I explore the scientific roots of manic and depressive episodes, the brain structures affected, and why treatments like lithium and antipsychotics work at the molec...

Billions have been spent conserving the giant panda, a globalsymbol of wildlife preservation - but should it remain the poster species of conservation? This podcast explores the biological, ecological, and ethical arguments on both sides, asking whether limited resources might be better directed toward less charismatic but more endangered or ecologically crucial species. A balanced, evidence-based...

Harold Shipman, once seen as a pillar of trust in his community, remains one of the most notorious serial killers in modern history. Over a period spanning more than two decades, he is believed to have murdered at least 215 patients, though some estimates suggest the total may have reached 250. Shipman used his position as a general practitioner to commit these crimes, exploiting the immense trust...

In this episode, I’m joined by student Sunike, who exploreswhether dental implants are being used too readily as a first-line treatment. She examines the ethical considerations surrounding this trend, the rise of dental tourism, the hidden complications behind implants, and why preserving natural teeth should often come first. Through evidence-based research, and real patient stories, Sunike chall...

Ever wonder why hearing an old song or seeing a childhoodtoy can instantly pull you back into a moment that feels both distant and alive? Nostalgia isn’t just sentimentality—it’s a biological and neurological process deeply embedded in the way our brains link emotion, memory, and reward. What feels like a trip down memory lane is, in truth, a carefully orchestrated cascade of neural activity, neur...

Antibiotic resistance is a rapidly growing global threat, driven by misused medications and the natural evolution of bacteria. Modern technologies such as AI-guided phage therapy and AMR surveillance are opening new pathways to detect, target, and treat resistant infections more precisely. Tackling this crisis, however, requires a unified “One World” approach where countries share data, resources,...

The Titanic, long remembered for its tragic sinking, has transformed into an underwater laboratory, with unique biological and chemical processes actively degrading the wreck. Microbes, including iron-eating bacteria, play a pivotal role in the ship's slow decay, while a new ecosystem of marine life has taken root on the Titanic’s remains. As the wreck continues to disintegrate, it offers rese...

The Victorian circus and its infamous freakshows were a curious mix of biological wonder and human exploitation. While many of the individuals displayed suffered from rare medical conditions, their participation often came at a high personal cost. This podcast delves into the ethical and biological implications of these "freaks," questioning whether they were marvels of biology or simply...

Mitochondrial replacement therapy (MRT) offers a revolutionary solution to prevent mitochondrial diseases by combining DNA from three individuals, providing hope for families previously doomed by genetic disorders. With successful trials in the UK, MRT stands at the intersection of groundbreaking science and complex ethical considerations, marking a new era in reproductive medicine. As the technol...

Nuclear disasters like Chernobyl and Fukushima leave morethan just ruins; they cause profound and lasting biological damage that echoes through generations. This episode explores how ionising radiation affects DNA, cells, and entire ecosystems, revealing the hidden costs of these catastrophicevents. From cancer risks to ecological disruption, I uncover the complex science behind the invisible fall...

Veterinary care has become increasingly advanced, but withprogress has come a steep rise in cost, leaving many pet owners struggling to afford the care their animals deserve. In this episode, I'll explore the real reasons behind high vet bills: from cutting-edge technology and professional training to corporate influence and insurance shortfalls. Join me as I unpack whether veterinary care is trul...

Behind the bright lights and roaring crowds of contact sports lies a silent epidemic: repeated head trauma and its devastating effects on the brain. From NFL legends and MMA fighters to boxers and pro wrestlers, many athletes have suffered the irreversible consequences of Chronic Traumatic Encephalopathy (CTE). In this episode, I explore the biology, the personal stories, and the urgent need for c...

There are over 200 different types of dwarfism, with achondroplasia being the most common, affecting one in 25,000 births. Achondroplasia is caused by a spontaneous mutation in the fibroblast growth factor receptor 3 gene that occurs in the developing embryo, resulting in a disproportionately short stature and abnormal growth in the spine and skull. In this podcast, I'm joined by one of my A-L...

From bingeing murder documentaries to tuning in to every new crime podcast, millions are hooked on true crime...but why? In this episode, I explore the surprising biological roots of our obsession, uncovering how fear, empathy, dopamine, and evolution all play a role. It turns out our brains are wired to pay attention to danger, feel for victims, and rehearse survival - making true crime not just...

From dolphin whistles to parrot mimicry, and even AIprojects decoding whale song, science is beginning to explore what once seemed pure fantasy: the ability to truly communicate with animals. In this episode, I delve into the biology of language, the cognitive abilities of non-humanspecies, and the cutting-edge technologies bringing us closer to cross-species conversation. Could Dr. Dolittle's dre...

Memorising facts might get you part of the way in A-Level Biology, but true success lies in understanding how the systems connect, interact, and apply to real-world contexts. In this episode, I unpack why surface-level revision isn’t enough, especially under the AQA exam board...and how students can shift from rote learning to meaningful mastery. With insights into how biology is structured, asses...

From cold chills and flickering lights to full-blown apparitions, tales of ghosts have haunted human imagination for centuries. But what if there’s a biological explanation for these experiences? In this episode, I explore how brain chemistry, sleep paralysis, sensory misfires, and even mould spores might explain the science behind what many believe to be the supernatural.

While some argue that apps and 3D models can replace animal dissection in schools, hands-on anatomical exploration still offers something digital tools can’t. In this podcast, I dive into the value of dissection for learning biology - from exploring real brain and eye tissue to examining the intricacies of turtles and lampreys. I also address the ethical debate and explain why dissection, when don...

What happens when a doctor makes a mistake - and who pays the price? In this podcast, I explore the professional, legal, and emotional fallout of medical errors, from GMC investigations to courtroom drama and personal trauma. It’s a revealing look at the human side of medicine, where perfection is impossible and accountability is everything.

Could we ever bring dinosaurs back from extinction - and should we even try? Inspired by the legacy of Jurassic Park , this episode dives into the science of de-extinction, ancient DNA, and the ethical questions behind resurrecting long-lost species. From bold ambitions to sobering realities, we explore how close we really are to reviving the past.

In this podcast, I'm joined by A-Level biology student Amelie, who will delve into the mysterious world of animal dreams, exploring what’s happening in the brain when dogs twitch, cats flick their whiskers, or horses gallop in their sleep. She will examine REM sleep, neural patterns, and what current science suggests about the dreamscapes of our animal companions. From evolutionary clues to be...

What if building LEGO wasn’t just fun - but biologically good for your brain? In this episode, I explore how LEGO play boosts focus, reduces stress, sharpens motor skills, and supports creativity through real neurological and psychological mechanisms. Whether you're a parent, therapist, lifelong builder, or like me, only just discovering the joys of LEGO, you'll discover why clicking bricks togeth...