Articles
mental healthOnly 2% Score Above 130 — What Your IQ Actually Means (Free 10-Question Test)
If your IQ test result was 115, you scored higher than 84 out of 100 people. Above 130? Top 2%. But your number on any short test moves 5-15 points day to day, and that variation is the whole reason psychologists never trust one score.
5/31/2026 · 6 min
nutritionWhy a 1500-calorie diet is too low for most adults
The '1500 kcal diet' is everywhere on TikTok and Instagram, and for most adults it is below the energy their body burns at rest plus a normal day. This is what your real number looks like, and how the same person needs more at 16, less at 60, and why going under it backfires.
5/23/2026 · 7 min
pregnancyOnly 4% of Babies Are Born on Their Due Date — The 280-Day ACOG Math
Your due date is a 280-day calculation from a rule a German obstetrician wrote in 1838. Roughly 4 in 100 babies arrive on it; the rest spread across a 5-week window that is still considered normal. Here is the ACOG-cited math, why ultrasound dating wins after week 8, and a.
5/23/2026 · 7 min
nutritionBMR, TDEE and Calorie Deficit: The 3 Numbers That Decide Weight Loss
You cut to 1,200 calories and the scale stopped moving. The problem is almost never willpower — it is using the wrong number. BMR, TDEE and your deficit are three different figures, and most diets confuse them. Here is what each means, the formula science trusts, and the.
5/22/2026 · 7 min
metabolicAlways Thirsty and Tired? 4 Free Tests Catch Diabetes Risk Early
Type 2 diabetes builds silently over 5-10 years. By the time you feel thirsty, tired and notice belly weight, the process is well underway — but still reversible. Four free tests catch the risk early, when lifestyle can still turn it around. No signup, 6 minutes total.
5/21/2026 · 6 min
sleepSleeping 8 Hours but Still Tired? 3 Free Tests That Find the Cause
Eight hours in bed. Alarm goes off. You feel like you never slept. Sleep quantity is not your problem — sleep quality is. Three validated tests find whether insomnia, sleep apnea or circadian misalignment is wrecking your nights. Free, no signup, 6 minutes total.
5/20/2026 · 6 min
mental healthBurnout, Depression, Anxiety or Just Tired? 4 Free Tests in 8 Minutes
Coffee doesn't fix it. Sleep doesn't fix it. You ask yourself: is this burnout, depression, anxiety or just chronic fatigue? Four validated 2-minute tests draw the line between them — in 8 minutes total, free, no signup. Here is how to read each one.
5/19/2026 · 6 min
mental healthPHQ-9 explained: when a bad stretch becomes clinical depression
A bad week is not depression. Two weeks of low mood, sleep changes, and lost interest might be. The PHQ-9 is the nine-question tool clinicians use to draw that line. Here is what your score means and when it matters.
5/13/2026 · 7 min
sleepTeens need 8-10 hours of sleep — here's what 6 actually does
School starts at 7:30. Your brain's natural bedtime is closer to midnight. Even on a disciplined night you're getting six hours. The AAP says you need eight to ten. Here's what the gap actually does to your body and your grades, and why it isn't laziness.
5/11/2026 · 7 min
mental healthTest stress vs an anxiety disorder
Your heart races, your hands sweat, your brain blanks. Ten minutes before the test. Everyone gets this. The question this article answers: when does it stop being normal stress and become something a doctor would call an anxiety disorder.
5/8/2026 · 6 min
metabolicWhen BMI gets it wrong
BMI compresses your weight and height into a single number, then maps it onto cutoffs invented for population statistics. The cutoffs work fine for most people. They fail predictably in five situations. Here is when to stop trusting the number.
5/6/2026 · 7 min
mental healthWhy so many adults discover ADHD only in their thirties or forties
If you spent your thirties googling 'why can't I just sit down and do this', you're in good company. Adult ADHD diagnosis has quintupled in twenty years — most newly diagnosed are women in their thirties and forties who got through school by sheer compensation.
5/2/2026 · 7 min
metabolicWhy dietitians switched from Harris-Benedict to Mifflin-St Jeor
If you've used a calorie calculator in the last 20 years, your number almost certainly came from a 1990 equation called Mifflin-St Jeor — not the much older Harris-Benedict formula. Here's why clinicians made the switch, and how big the difference actually is.
4/28/2026 · 7 min