Health and Psychology
Human body and mind: medicine, mental health, neuroscience, ADHD, and everyday psychology.
#2740: ICL vs LASIK for High Myopia in 2025
Considering laser eye surgery for a prescription past -7? The best option may not be a laser at all.
#2739: When Hoofbeats Are Zebras: How Doctors Learn to Think
How family doctors develop clinical judgment—pattern recognition, Bayesian reasoning, and the cognitive traps that lead to diagnostic errors.
#2738: Why Can't Humans Sleep 24 Hours Straight?
Even when exhausted, your body won't let you sleep past 12-13 hours. Here's the biology behind the hard cap.
#2732: Why Contact Lenses Still Hurt 10 Years Later
A contact lens infection can permanently rewire your corneal nerves, making lens wear impossible forever.
#2731: ADHD in Adults: The 60% Reality
ADHD doesn't fade by adulthood for most people. Here's what the data actually shows.
#2730: Late Diagnosis at 57: Rewriting Your Life
What happens when you learn you’re autistic at 57? It’s not just relief—it’s a full rewrite of your entire life story.
#2728: Cleaning When You Can't Handle the Fumes
Vinegar and baking soda work, but not as disinfectants. Here’s what actually works for asthma-safe cleaning.
#2727: Your Kitchen Air Is Worse Than a Smoggy Day
Gas stoves spike NO2 above EPA limits in minutes. Here’s how to fix your kitchen air.
#2720: Does More Money Actually Make You Happier?
The $75K happiness threshold is outdated. New research shows the real relationship between income and well-being is more nuanced.
#2719: How Streetlight-Level Light Disrupts Mammal Immunity
Even minimal artificial light at night—equivalent to street lighting—disrupts immune rhythms and increases mortality 2.35x in wild mammals.
#2711: What 28 Molecules Actually Do Inside You
Why 68% of US adults have subclinical deficiencies — and how missing one mineral can bottleneck your entire energy system.
#2710: Is Sunlight a Vitamin or a Hormone?
Why calling vitamin D a "vitamin" is a historical accident—and what sunlight does that supplements can't.
#2709: POTS, Sodium, and Long COVID Explained
Why electrolyte water helps POTS, how autonomic dysfunction works, and the long COVID connection.
#2708: Why Histamine Keeps You Awake and Makes You Sneeze
How one molecule runs both your allergy symptoms and your brain’s wakefulness system.
#2707: Foot Pedals vs USB Buttons: The Ergonomics of Dictation
Foot pedals, USB buttons, and under-desk macro pads for voice dictation — a deep dive into the hardware that makes AI dictation work.
#2706: Can Anyone Learn to Lucid Dream?
Lucid dreaming is real and trainable, but biology and technique both matter more than the Reddit community admits.
#2705: Your Brain Isn't a Hard Drive — What Actually Fits
Long-term memory isn't storage — it's a generative model. Here's where the brain/computer analogy actually holds up.
#2704: The Shower Effect: How Stepping Away Unlocks Solutions
Why do our best ideas come in the shower? The neuroscience behind the incubation effect and when to step back.
#2703: Why Fidgeting Actually Helps You Think
Fidget spinners aren't just toys—they're self-regulation tools. Here's the neuroscience behind why movement helps you focus.
#2701: Why Drugs Give You Vivid Nightmares
SSRIs, beta-blockers, and melatonin: how medications hijack the brain's dream machinery.