A Cell Of A Story

Roni Hel-Or
  • 0.0 (0)
  • Science
  • Updated Weekly

A Cell of a Story is a science podcast that asks why the human body still does things evolution never bothered to fix — and what that tells us about where medicine is headed next.

  1. Aug 18

    The Brain in Your Gut: From an Ancient Nervous System to Bioelectronic Medicine

    The enteric nervous system can coordinate huge amounts of digestive activity without asking the brain for instructions. This ancient neural network communicates with the brain through nerves, hormones, immune signals and microbial metabolites. Researchers are now exploring vagus-nerve stimulation, microbiome interventions and other ways of deliberately modifying that gut-brain communication.

  2. Aug 17

    Human Sonar: The Sense Evolution Never Gave Us—but the Brain Can Learn

    Episode description:Bats evolved biological sonar hardware. Humans did not. Yet trained blind echolocators can use tongue clicks and reflected sound to build surprisingly detailed spatial representations, demonstrating how flexible the human brain can be. Modern sensory-substitution devices are taking that principle further with ultrasound, cameras, AI and wearable feedback.

  3. Aug 16

    The Heart That Forgot How to Regenerate

    Episode description:Some fish regenerate damaged heart muscle. Adult human hearts largely replace major injury with scar tissue. Researchers are now trying to reactivate regenerative pathways that remain inside mammalian biology, including tightly controlled activation of YAP, a protein involved in cell growth and tissue repair. A reversible YAP gene-therapy system improved cardiac repair in animal models in 2025.

  4. Aug 15

    The Colors Evolution Didn’t Give Us: Designing New Vision

    Humans see only a tiny slice of the electromagnetic spectrum. Other animals evolved very different visual worlds because their opsins—the light-sensitive proteins in photoreceptors—respond to different wavelengths. Many birds, insects and fish can detect ultraviolet light, while some species have visual systems tuned to very different environmental demands. Changes in opsin genes and their expression are a major mechanism by which vertebrate color vision evolves.

  5. Aug 14

    The Backwards Retina: Why Evolution Wired Our Eyes Inside Out

    Evolutionary story: Vertebrates and cephalopods independently evolved sophisticated camera-like eyes, but they wired their retinas differently. In vertebrates, including humans, light passes through several retinal layers before reaching photoreceptors, whose light-sensitive portions point toward the retinal pigment epithelium. Ganglion-cell axons then have to cross the retina and exit through the optic nerve, creating the blind spot.

  6. Aug 13

    Born Unfinished: Why the Human Brain Keeps Developing After Birth

    Evolutionary story: Human infants undergo an unusually long period of brain development after birth. Rather than attributing this entirely to the classic “obstetric dilemma,” discuss newer views involving pelvic constraints, maternal energetics, brain growth and the advantages of prolonged developmental plasticity.

  7. Aug 12

    How Science Rewrites Traumatic Memories

    The brain stores danger with unusual strength because forgetting a threat could be fatal—but traumatic memories can remain vivid after the danger has disappeared.

  8. Aug 10

    Fever: Evolution's Heat Weapon Becomes Cancer Technology

    Evolutionary story: Fever is a regulated physiological response conserved across many vertebrates rather than merely accidental overheating during infection.Research to feature: Modern oncology is deliberately using controlled hyperthermia. A 2025 review describes radiofrequency, microwave and focused-ultrasound hyperthermia as well as magnetic and photothermal nanoparticle approaches being investigated alongside other cancer treatments.

See All (35)

About

A Cell of a Story is a science podcast that asks why the human body still does things evolution never bothered to fix — and what that tells us about where medicine is headed next.

Information

  • Creator
    Roni Hel-Or
  • Years Active
    2026
  • Episodes
    35
  • Rating
    Clean
  • Copyright
    © Roni Hel-Or
  • Show Website
    A Cell Of A Story