Health & Body
Every idea in Doomscholar on health & body. Open any one to read it in layers, with its sources.
- Active Parents Raise Active ChildrenLynn L. Moore et al.A child's physical activity level correlates far more strongly with an active mother than with an active father — and children of two active parents are nearly six times more likely to be active than children of two inactive parents.
- AlphaFold and the End of the Protein Folding ProblemJohn Jumper et al. (DeepMind)For fifty years, going from a protein's amino-acid sequence to its three-dimensional shape took months or years of experiment per protein. In 2020 a neural network did it in minutes at near-experimental accuracy, and two years later the predicted structure of nearly every catalogued protein was free to download.
- Circadian Rhythm & Sleep HomeostasisNathaniel Kleitman / Satchin PandaTwo processes govern sleep — a 24-hour circadian clock that schedules alertness, and a homeostatic pressure that builds with time awake — and violating either by irregular light, meals, or bedtime impairs cognition the next day more than most people realize.
- Epigenetics: Experience Writes on the GenomeConrad Waddington / Michael MeaneyEpigenetics shows experience can leave chemical marks on DNA that change gene expression without changing the code — and some marks, via careful animal models, appear responsive to stress, nutrition, and care.
- Fight-or-Flight & the Amygdala HijackWalter Cannon / Joseph LeDouxCannon's fight-or-flight describes the body's rapid mobilization under threat, and LeDoux showed the amygdala can route a fear signal before conscious cortex catches up — so you react before you have a reasoned perception of what you're reacting to.
- Habit StackingJames ClearThe best way to build a new habit is to attach it to a habit you already do every single day.
- How Not to DieMichael GregerMost of the top causes of premature death in wealthy countries — heart disease, several cancers, diabetes, high blood pressure — can be substantially prevented or reversed through diet and lifestyle, primarily via a whole-food, plant-based approach, though critics argue the book's evidence is selectively curated to support that conclusion.
- Identity-Based HabitsJames ClearTrue behavior change is identity change. If you don't shift how you view yourself, you will eventually sabotage your new habits to align with your old identity.
- Mirror Neurons & Embodied SimulationGiacomo RizzolattiRizzolatti's team found neurons that fire both when a macaque grasps and when it watches another grasp — suggesting understanding others is not abstract inference alone but embodied simulation of their actions and intentions.
- Neuroplasticity: The Brain That Changes ItselfNorman DoidgeThe brain physically rewires itself in response to repeated thought and behavior throughout adulthood, not just childhood — meaning habits, skills, and even chronic thought patterns are more changeable at a neural level than 'fixed personality' framing suggests.
- Prime Editing and the Reprogrammable Human GenomeScience TimeCRISPR 2.0 (Prime Editing) elevates genetic modification from a crude cutting tool to a precise word processor, unlocking the capability to cure most genetic diseases and propelling humanity into an era of directed, non-Darwinian evolution.
- The Power of HabitCharles DuhiggHabits run on a neurological loop of cue, routine, and reward, and the reliable way to change an existing habit is to keep the same cue and reward while deliberately swapping out the routine in between — not to rely on willpower alone.
- The Shallows: How the Internet Changes the BrainNicholas CarrCarr argues the internet, as a medium, rewires cognition toward scanning and against sustained deep reading — not because we choose distraction, but because the tool's form trains the brain that expects rapid reward.
- The Six Triggers Behind BurnoutRian DorisBurnout has six distinct psychological triggers — lack of control, values conflict, insufficient reward, work overload, unfairness, and breakdown of community — and taking time off only addresses one of them, which is why rest alone often fails to fix it.
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