TBC - Truly BioChemical – Details, episodes & analysis

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TBC - Truly BioChemical

Richard and Henry

Science

Frequency: 1 episode/18d. Total Eps: 14

Truly BioChemical shows how biochemistry is at the heart of virtually everything that we know and love.

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Data updated on 16/09/2026

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S02E01 Bonus : Sleep Paralysis | TBC - Truly BioChemical

Season 2 · Episode 1

Tuesday, September 15, 2026 • Duration 22:51

Step back into the dark side of REM sleep in this bonus episode of Truly BioChemical. We explore the terrifying sensory hallucinations that accompany this glitch in consciousness, from auditory rushing and phantom footsteps to olfactory decay and the crushing weight of the "incubus".

What we cover this week:

The Hallucination Spectrum: We break down the visual, auditory, and olfactory terrors of sleep paralysis, including the vivid sensation of air rushing through the head, the smell of decay, and out-of-body vestibular-motor hallucinations.
Sleepwalking vs. Paralysis: We explain why sleepwalking safely occurs during non-REM sleep, allowing the physical body to move without the brain experiencing vivid, directed dreams.
The Ion Pump Mechanism: We dive into the electrochemical mechanics of muscle paralysis, examining how the cellular potassium-sodium pump establishes a negative resting potential by pushing three sodium ions out for every two potassium ions brought in.
The Neurotransmitter Cascade: We trace the biochemical signaling pathway from acetylcholine in the pons, to glutamate, to the ultimate release of GABA and glycine by the medulla.
Hyperpolarizing Motor Neurons: We theorize how GABA and glycine alter cell membrane permeability—potentially by opening potassium channels to let positive charge escape—driving the internal charge lower to completely block skeletal motor neuron firing.

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S02E01 : Sleep Paralysis | TBC - Truly BioChemical

Season 2 · Episode 1

Tuesday, September 8, 2026 • Duration 20:33

Why does the brain wake up while the body stays completely frozen? In this episode of Truly BioChemical, we dissect the terrifying neuroscience and chemical signaling behind sleep paralysis.

From vivid hypnagogic hallucinations (the "intruder" and the "incubus") to the evolutionary purpose of motor inhibition during REM sleep, we break down the molecular switchboard controlling our sleep-wake states.

In this episode, we explore:

The Clinical Picture: What actually happens during sleep paralysis, its prevalence in narcolepsy, and why the amygdala triggers primal dread.
The REM Switch: How the pons activates REM-on neurons and triggers the descent into vivid dreaming.
The Neurochemistry of Paralysis: The precise biochemical cascade from acetylcholine and glutamate to the spinal motor neuron inhibitors—GABA and glycine.
Chemical Structure Deep-Dive: Breaking down the molecular formulas and functional groups of acetylcholine, glutamate, and γ-aminobutyric acid (GABA).
When Systems Desynchronize: Why histamine and serotonin (5-HT) shifts can snap consciousness awake before skeletal muscle tone is restored.

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S02 : Teaser | TBC - Truly BioChemical

Season 2

Tuesday, August 4, 2026 • Duration 02:00

We are back, and things are getting a massive upgrade. Season 2 of Truly Biochemical is coming soon, and we are pushing the biochemistry far beyond the syllabus.

In this quick update, we lay out the new ground rules for the podcast. We are bringing you tighter episodes, slightly more preparation, and entirely new categories that bridge the gap between textbook science and the real world. Plus, for those of you who have been waiting, the entire Season 1 catalog will soon be officially live on Apple Podcasts as well as Spotify.

What's new in Season 2:

The 20-Minute Rule: We are capping our standard episodes at 20 minutes to keep the science punchy and focused. If a topic overflows, we’ll drop the extra track as a separate bonus episode.
The Pre-Spun Wheel: We are now spinning the topic wheel at the end of each episode. This gives us time to actually research the theories and come prepared.
Truly Biochemical Law (Episode 3): We are taking science to court, looking at environmental legislation and corporate liability.
Truly Biochemical Literature (Episode 5): Investigating the chemical accuracy of classic fiction, breaking down the poisons used by Agatha Christie and Arthur Conan Doyle, among others.
Truly Biochemical Medicine (Episode 7): Exploring the molecular engineering behind blockbuster drugs, from Insulin to weight-loss medications like Ozempic.

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S01E10 : The Haber Process | TBC - Truly BioChemical

Season 1 · Episode 10

Tuesday, May 5, 2026 • Duration 38:38

You are likely only alive because of this reaction. Literally. It is estimated that 50% of the nitrogen atoms in your body—in your DNA, your enzymes, your muscles—came from a factory, not nature.

In the Season 1 Finale of Truly BioChemical, we tackle the most important industrial reaction in human history. We explain how two German scientists figured out how to "turn air into bread" and why this chemical breakthrough effectively detonated the human population bomb. We move from the bird-poop wars of the 19th century to the high-pressure steel reactors that sustain 8 billion people today.

In this episode:

The Nitrogen Problem: Nitrogen makes up 78% of the air, but the Triple Bond (N≡N) is so strong that plants can't use it. We explain the massive Activation Energy barrier required to break it.
Guano Wars: A history lesson on how the world relied on limited supplies of bird droppings (Guano) before we learned to synthesize Ammonia (NH3).
The Compromise: Le Chatelier's Principle vs. Economics. Why industrial conditions (450°C, 200 atm) are a calculated trade-off between Equilibrium Yield (favored by low temp) and Reaction Rate (favored by high temp).
Surface Chemistry: How the Iron Catalyst works by Adsorbing nitrogen molecules to weaken their bonds—and why Osmium would be better if it wasn't so expensive.
Fritz Haber's Legacy: The dark duality of the man who saved billions from starvation with fertilizer but pioneered chemical warfare (Chlorine gas) in WWI.

HIT FOLLOW and we will see you for Season 2!

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S01E09 : Water is a Special Molecule | TBC - Truly BioChemical

Season 1 · Episode 9

Tuesday, April 21, 2026 • Duration 40:16

If you found a liquid on another planet that expanded when it froze, dissolved almost anything, and required a massive amount of energy just to warm up by 1°C, you’d call it alien technology. We just call it water.

In this episode of Truly BioChemical, we strip back the biology to look at the chemistry of life’s solvent. We explain why Water (H2O) breaks all the rules of standard chemistry and why, without its "weird" properties, life on Earth would have cooked, frozen, or dehydrated billions of years ago.

In this episode:

The Dipole Nature: We revise the electronegativity difference between Hydrogen and Oxygen. Why does this create a δ+ and δ− charge, and how does this allow water to dissolve ions so effectively?
High Specific Heat Capacity: The buffer for life. We explain why water is so hard to heat up (thanks to hydrogen bonds absorbing the energy) and why this is crucial for maintaining stable enzyme temperatures.
Latent Heat of Vaporization: The physics of sweat. Why evaporating a tiny amount of water removes a huge amount of heat energy from your body.
Density Anomalies: Why ice floats. We look at the crystal lattice structure that makes solid water less dense than liquid water—and why this quirk prevents the oceans from freezing solid from the bottom up.

HIT FOLLOW to stay hydrated with science!

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S01E08 : Lightning | TBC - Truly BioChemical

Season 1 · Episode 8

Tuesday, March 24, 2026 • Duration 45:41

Why do farmers love a thunderstorm? (Hint: It’s not the rain—it’s the free fertilizer).

In this episode of Truly BioChemical, we look at the high-voltage chemistry happening above our heads. We explain how a cloud is basically a giant floating battery and why the snap of lightning is the only natural force (besides bacteria) capable of smashing the nitrogen triple bond. We move beyond the physics of the flash to explore why a thunderstorm is essential for the proteins in your muscles and the DNA in your cells.

In this episode:

The Physics of the Spark: We discuss Triboelectric Charging (friction), charge separation in clouds, and the Dielectric Breakdown of air. How does an insulator suddenly become a conductor?
The Nitrogen Problem: Nitrogen gas (N2) makes up 78% of the air, but it’s chemically inert and useless to plants. We explain the massive activation energy required to break the Triple Bond (N≡N).
Thunderstorm Chemistry: How the extreme heat (30,000 K) forces Nitrogen to react with Oxygen to form Nitrogen Oxides (NOx). We trace the pathway from the spark to Nitric Acid and finally Nitrates in the soil.
Electronegativity: A revision refresher on why Oxygen is the "bully" of the periodic table and steals electrons to form oxides.

HIT FOLLOW for more high-energy science next week!

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S01E07 : Does AI mean I don't have to learn anything? | TBC - Truly BioChemical

Season 1 · Episode 7

Tuesday, March 10, 2026 • Duration 44:55

"Sir, why do I need to learn the Periodic Table if ChatGPT can just tell me?" It’s the question every teacher is dreading—and in this episode, we answer it.

In this episode of Truly BioChemical, we spin the wheel on the biggest existential threat to exams since the invention of the calculator: Artificial Intelligence. We debate whether AI is just a "hyped-up search engine" or a tool that will make human brains obsolete. We argue that outsourcing your thinking isn't just lazy—it's dangerous. You can't spot a hallucination if you don't know the facts, and you can't discover the "unknown unknowns" if you don't know what you don't know.

In this episode:

The Knowledge Quadrant: We map out "Known Knowns" vs "Unknown Unknowns." Why you need a base level of human knowledge just to know which questions to ask the machine.
Hallucinations & Critical Thinking: Why AI is a "yes man" that will confidently lie to you, and why you need human skepticism to catch it out.
The "Ball Bearing" Moment: Discussing creativity, sleep, and why random human inspiration (like Benjamin Franklin's) can't be replicated by a predictive algorithm.
Practical Dexterity: Why a robot can write your lab report, but it still can't perform a titration, set up a reflux condenser, or manage the fine motor skills required for real science.
The Carbon Cost: The hidden environmental impact (and heat generation) of every single prompt you type.

HIT FOLLOW to make sure you are notified of the next episode!

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S01E06 : Dr. Nicholls' Beef With Cattle | TBC - Truly BioChemical

Season 1 · Episode 6

Tuesday, February 24, 2026 • Duration 49:11

Is your burger destroying the planet? Dr. Nicholls certainly thinks so — and he’s brought the thermodynamics to prove it.

In this episode of Truly BioChemical, we step into the farmyard (and the chemistry lab) to settle a longstanding department debate. We explore why a cow is essentially a walking, mooing fermentation tank and why that is a disaster for the atmosphere. We move beyond the standard "eat less meat" slogans to look at the specific biochemistry of methanogenesis and the brutal inefficiency of energy transfer in the food chain.

In this episode:

The Methanogen Problem: We introduce the Archaea living in the rumen. Why do they produce methane (CH4) as a metabolic byproduct, and how exactly does enteric fermentation work?
Methane vs. CO2: A critical look at Global Warming Potential (GWP). Why is a methane molecule 28x more effective at trapping IR radiation than carbon dioxide? (Hint: It’s all about the bond vibrations).
Trophic Levels & Thermodynamics: Applying the 10% law of energy transfer. We crunch the numbers on why turning sunlight into grass, and then grass into beef, is an energetic "black hole" compared to a plant-based diet.
Digestion Chemistry: Why cows can unlock the energy in cellulose (thanks to cellulase) but humans can’t.

HIT FOLLOW to be notified when the next episode is launched!

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S01E05 : Antibiotics and Antibiotic Resistance | TBC - Truly BioChemical

Season 1 · Episode 5

Tuesday, February 10, 2026 • Duration 43:27

We’ve all been told to "finish the course"—but do you actually know why? Or why a bit of mouldy bread from 1928 is the only reason you didn't die of a scratched knee in Year 7?

In this episode of Truly Biochemical, we’re looking at the microscopic war happening in your Petri dish. It’s the ultimate "survival of the fittest" story, where bacteria are evolving faster than we can invent new weapons to kill them.

We move beyond the GCSE "superbug" headlines to look at the terrifyingly clever genetics of resistance—from bacteria trading DNA like Pokémon cards to the enzymes that chew up our best drugs.

In this episode:

How Antibiotics Actually Work: We break down the mechanism of penicillin and beta-lactams. Why do they target peptidoglycan cell walls? And why does this cause bacteria to explode (osmotic lysis) instead of just fading away?

The Resistance Toolkit: It’s not just mutation. We discuss horizontal gene transfer and plasmids—how bacteria share resistance genes (conjugation) to upgrade their neighbours.

Natural Selection in Action: Explaining directional selection in the context of a hospital ward. Why are hospitals the perfect gym for training "hench" bacteria like MRSA?

The "Finish the Course" Myth: Why stopping early doesn't just let the infection back in—it actively trains the survivors to be resistant to the drug.

HIT FOLLOW so you don't miss the next episode!

S01E04 : Of Geckos and Mozzies | TBC - Truly BioChemical

Season 1 · Episode 4

Tuesday, February 3, 2026 • Duration 44:25

Ever wondered how a mosquito stands on a pond like a biblical figure? Or how a gecko defies gravity on a pane of glass without using a single drop of glue? Hint: It’s not suction—it’s pure physics.

In this episode of Truly BioChemical, we’re stripping back the biology to look at the invisible forces that hold the world together—literally. We compare the incredible strength of water's "skin" against the weak-but-mighty forces allowing lizards to walk on ceilings.

We move beyond the A-Level textbook to ask: How can a steel needle float on water? And why is a gecko’s foot basically a masterpiece of surface area engineering?

In this episode:

The Mosquito & Surface Tension: Deep diving into the Hydrogen Bonds that create a "skin" on water strong enough to support an insect’s weight.
Molecular Polarity: We discuss dipoles, partial charges, and why water is "stickier" than it looks.
Gecko Physics: A crucial look at Van der Waals Forces (specifically London Dispersion Forces).
Spatulae & Adhesion: How millions of microscopic hairs create enough friction to hold a lizard upside down using only intermolecular attraction.
Forces Compared: Breaking down why surface tension relies on strong H-bonds, while geckos rely on maximizing weak forces over a massive surface area.

HIT FOLLOW so you don't miss next week's spin of the wheel!

No mosquitoes were harmed in the making of this episode.

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TBC - Truly BioChemical – Details, episodes & analysis

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TBC - Truly BioChemical – Details, episodes & analysis

Podcast details

Recent rankings

Apple Podcasts

Spotify

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RSS feed quality and score

Publication history

Latest published episodes

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Related Shows Based on Content Similarities

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Apple Podcasts

Spotify