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PODCAST

Clinical Deep Dives

Med School Audio - Medical Knowledge Reimagined & Learning Made Memorable.

Clinical Deep Dives is a Medlock Holmes podcast for clinicians and learners who want understanding, not just information. Using classic medical and surgical texts as a guide and the generative power of AI, each episode explores ideas with curiosity and clarity, designed for learning on the move and knowledge that actually sticks. drmanaankarray.substack.com

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All Episodes

64:36

PSYCH 103: Pharmacologic Treatment of Schizophrenia

Clinical Deep Dives ·

2026/08/26

Medlock Holmes enters the Great Apothecary of the Divided Mind.The chamber is vast.Along one wall stand the abandoned instruments of psychiatric history: wet-sheet packs, insulin syringes, barbiturate sleep chambers, convulsive machines, and the cold steel apparatus of prefrontal lobotomy.Each represents an era in which clinicians tried to calm psychosis without understanding how to treat it.Then Holmes finds a small amber bottle labelled Chlorpromazine, 1952.Its arrival changed psychiatry.For the

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22:28

PSYCH 102: Phenotypes of Psychosis

Clinical Deep Dives ·

2026/08/25

Medlock Holmes is summoned to a locked psychiatric ward to meet an extraordinary patient.The man was once a distinguished professor of anatomy: intellectually formidable, artistically gifted, and professionally successful. Long after the age at which schizophrenia usually appears, he developed relentless visual hallucinations and an elaborate belief that the source of psychosis lay within the human retina.Across a worn wooden table lie hundreds of precise anatomical drawings.Each depicts an eye

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51:52

PSYCH 101: Neurocognition in Schizophrenia

Clinical Deep Dives ·

2026/08/24

Medlock Holmes arrives at what appears to be the simplest of all investigations.A patient is sitting quietly in an elegant Victorian library.No voices.No delusions.No obvious distress.To every casual observer, the illness seems well controlled.Yet something is wrong.The patient repeatedly loses track of conversations.Simple instructions must be repeated.Bills remain unpaid.Appointments are forgotten.Books are read without being remembered.Employment slips away despite the disappearance of

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55:31

PSYCH 100: Multimodal Neuroimaging and the Future of...

Clinical Deep Dives ·

2026/08/23

Medlock Holmes stands before the final chamber of the Neuroimaging Institute.Around him are the tools he has mastered throughout his investigation.MRI reveals the brain’s architecture.Diffusion imaging maps its white matter highways.PET uncovers its chemistry.Magnetic resonance spectroscopy measures its metabolites.Functional MRI watches neural networks come alive.Each technique has solved part of the mystery.Yet none has explained schizophrenia on its own.Holmes smiles.The greatest detectives never

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58:42

PSYCH 099: Functional Brain Imaging in Schizophrenia

Clinical Deep Dives ·

2026/08/22

Medlock Holmes enters the Hall of Living Minds.Unlike the museum of structural imaging, nothing here is still. Every wall pulses with colour as thoughts ignite across the cortex. Memory glows, emotion flickers, attention surges, and language races through intricate neural pathways. Holmes is no longer examining anatomy-he is watching the brain at work.His first instrument is functional magnetic resonance imaging (fMRI).Unlike PET, which relies on radioactive tracers, fMRI detects changes in blood

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57:47

PSYCH 098: Structural Brain Imaging in Schizophrenia

Clinical Deep Dives ·

2026/08/21

Medlock Holmes enters a vast radiological observatory where the human brain can be examined without ever being opened.The earliest instruments are crude. Old computed tomography images reveal enlarged ventricles-dark chambers within the brain that seem wider in people with schizophrenia. The finding is important, but it is not specific enough to solve the case.Then the observatory changes.Magnetic resonance imaging arrives.For the first time, Holmes can examine living grey matter, white matter,

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62:23

PSYCH 097: Cellular and Molecular Neuropathology of...

Clinical Deep Dives ·

2026/08/20

Medlock Holmes enters a laboratory containing a brain that appears, at first glance, entirely normal.There is no tumour.No haemorrhage.No obvious area of destruction.Nothing resembling the unmistakable lesions seen in many neurological diseases.Yet Holmes knows that normal appearance does not mean normal function.He begins his investigation at the microscopic level.Within the prefrontal cortex, the number of neurons is largely preserved, but the space between them has changed. Dendritic branches are

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57:04

PSYCH 096: The Clinical Epidemiology of Psychosis...

Clinical Deep Dives ·

2026/08/19

Medlock Holmes enters a vast railway control room where thousands of human journeys are represented by illuminated tracks.Some routes remain smooth throughout life.Others begin with subtle diversions: delayed development, social isolation, anxiety, depression, trauma, or unusual perceptual experiences. Most of these tracks eventually return to the main line. A smaller number continue towards persistent psychosis and significant impairment.Holmes is not searching for a single cause.He is trying to

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47:26

PSYCH 095: Genetics of Schizophrenia

Clinical Deep Dives ·

2026/08/18

Medlock Holmes enters perhaps the most intricate room in the entire Psychiatric Archive.Above the doorway is engraved:“The Library of Inheritance.”Thousands of leather-bound books stretch from floor to ceiling.Each volume represents a human genome.Holmes expects to find a single book labelled The Schizophrenia Gene.Instead, he finds nothing of the sort.The librarian smiles.“You are looking for one culprit.”“There are hundreds.”“And none acts alone.”Holmes immediately understands.Schizophrenia is not

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41:10

PSYCH 094: Global Burden of Schizophrenia

Clinical Deep Dives ·

2026/08/17

Medlock Holmes arrives at the Hall of Human Burden.Unlike previous investigations, this hall contains no microscopes, MRI scanners, or genetic maps.Instead, the walls are covered with clocks.Some clocks have stopped too early.Others continue to tick, but their hands barely move, representing lives lived with profound disability rather than early death.Holmes quickly realises that measuring illness is not simply about counting deaths.Many illnesses kill.Others steal decades of healthy

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61:50

PSYCH 093: Phenomenology of Schizophrenia

Clinical Deep Dives ·

2026/08/16

Medlock Holmes enters an enormous archive filled with thousands of witness statements.Some describe voices no one else can hear.Others speak of thoughts being inserted, removed, or broadcast beyond the boundaries of the mind.Some accounts are crowded with elaborate conspiracies. Others contain only a few sparse words, long silences, diminished expression, and a life gradually emptied of purpose.Every file is different.Yet all have been placed beneath the same heading:Schizophrenia.Holmes immediately

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46:23

PSYCH 092: Schizophrenia

Clinical Deep Dives ·

2026/08/15

Schizophrenia is one of the most misunderstood disorders in medicine. It is not simply a condition of hallucinations and delusions; it is a disorder that disrupts perception, cognition, motivation, emotion, and the ability to connect with the world. For centuries it was viewed as madness, then as degeneration, later as a dopamine disorder, and now increasingly as a disorder of brain circuits, neurodevelopment, and dysfunctional neural networks.In this opening chapter of the schizophrenia series,

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50:03

PSYCH 091: Anabolic-Androgenic Steroid-Related Disorders

Clinical Deep Dives ·

2026/08/14

A famous bodybuilder walks into Medlock Holmes’ consulting room.He is physically magnificent.Broad shoulders. Sculpted chest. Powerful arms.Yet Holmes notices something else.The man cannot stop looking at his reflection.Every polished surface becomes another mirror.Every missed gym session feels catastrophic.Every slight reduction in muscle size feels like losing part of himself.Holmes quickly realises that this is not simply a story about muscles.It is a story about identity.Most people think

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49:26

PSYCH 090: Sedative-, Hypnotic-, or...

Clinical Deep Dives ·

2026/08/13

Medlock Holmes is summoned to investigate a peculiar paradox.The patients arriving at his clinic are not chasing euphoria. Many have never bought drugs illegally. They are teachers, nurses, executives, retirees, and people living with chronic anxiety or insomnia. They followed medical advice. They took their medication exactly as prescribed.Yet months-or years-later, many discover something unsettling.They no longer know whether they are taking the medication because they still need it, or because

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41:57

PSYCH 089: Opioid Use and Related Disorders: From...

Clinical Deep Dives ·

2026/08/12

Medlock Holmes enters a city built around a remarkable hospital.Within its walls, suffering is eased. Pain is softened. Patients who could not move begin to breathe, walk, sleep, and recover. The medicines used here are powerful, ancient, and deeply valuable.Yet beyond the hospital gates, Holmes finds another city forming in the shadows.At first, the same medicines offer warmth, relief, and escape. Then tolerance develops. The dose that once brought comfort no longer works. The body adapts. The mind

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65:15

PSYCH 088: Tobacco-Related Disorders

Clinical Deep Dives ·

2026/08/11

Medlock Holmes is summoned to investigate the greatest unsolved epidemic in modern psychiatry.Unlike the previous cases, there is no mystery about what causes the deaths.The evidence has been overwhelming for decades.Yet millions continue to use the substance.The mystery is not what tobacco does.The mystery is why humanity continues to smoke despite knowing the truth.Holmes begins where every psychiatrist must begin-with nicotine.Nicotine is one of the most powerfully addictive substances known,

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47:02

PSYCH 087: Inhalant-Related Disorders

Clinical Deep Dives ·

2026/08/10

Medlock Holmes is called to investigate a troubling mystery among the youngest citizens of the city.There is no dealer on the street corner.No hidden laboratory.No expensive supply chain.Instead, the clues are ordinary household objects: glue, paint thinner, spray cans, lighter fluid, petrol, correction fluid, cleaning products, and aerosol dusters.At first, the city dismisses the danger.These are not “real drugs”, people say.They are products.They are everywhere.But Holmes knows that availability

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46:00

PSYCH 086: Hallucinogen-Related Disorders

Clinical Deep Dives ·

2026/08/09

Medlock Holmes is called to investigate a series of extraordinary reports.One witness describes colours that seem alive. Another believes time has stopped. A third feels completely detached from their own body, while another speaks of overwhelming love, profound spiritual insight, or terrifying paranoia. Some recover within hours, while others continue to experience disturbing visual phenomena months or even years later.At first glance, every case appears to point towards severe mental illness.Yet

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58:57

PSYCH 085: Cannabis-Related Disorders

Clinical Deep Dives ·

2026/08/08

Cannabis is often viewed as harmless, natural, or even medicinal, yet its relationship with mental health is far more complex. In this episode, Medlock Holmes investigates how THC alters brain function, why some people develop dependence while others do not, and the growing evidence linking cannabis with anxiety, psychosis, cognitive impairment, and withdrawal. As cannabis becomes increasingly potent and widely available, Holmes uncovers the delicate balance between therapeutic potential and

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43:56

PSYCH 084: Caffeine-Related Disorders

Clinical Deep Dives ·

2026/08/07

Every morning, before the city truly awakens, Medlock Holmes notices a remarkable ritual.Office lights flicker on.Coffee machines begin to hiss.Kettles whistle.Students cradle steaming mugs.Doctors begin ward rounds with takeaway cups in hand.Parents finally feel awake after the first sip.Unlike the illicit drugs Holmes has investigated before, no one hides this substance.It is celebrated.Shared.Offered to guests.Embedded within culture itself.Yet Holmes is puzzled.How can the world’s most socially

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