❤️ Health guides
BMI, calories and body metrics.
What Is My Ideal Weight? The Formulas Explained
There's no single ideal weight. Here's what the Robinson, Miller, Devine and Hamwi formulas say, how they compare to a healthy BMI range, and how to read the numbers sensibly.
28 September 2026 · 2 min read
Body Fat Percentage: What It Means and How to Estimate It
What body fat percentage measures, why it can tell you more than BMI, and how the US Navy tape method estimates it from a few simple measurements.
21 September 2026 · 2 min read
How Much Water Should You Drink a Day?
The old 'eight glasses' rule is a rough guess. Here's how daily water needs really scale with body weight and exercise — and how to estimate a sensible personal target.
14 September 2026 · 2 min read
Sleep Cycles and the Best Time to Go to Bed
Waking mid-cycle leaves you groggy; waking between cycles feels easier. Learn how the roughly 90-minute sleep cycle works and how to time your bedtime or alarm around it.
27 August 2026 · 2 min read
How Your Pregnancy Due Date Is Calculated
A due date is estimated from your last period, not conception — which is why the count is 40 weeks. Learn how the estimate works, why cycle length matters, and how accurate the date really is.
25 August 2026 · 2 min read
TDEE, BMR and Calories: What the Numbers Mean
BMR, TDEE and your calorie target sound technical but the idea is simple. Learn what each number means, how they're estimated, and how to use them to lose, gain or maintain weight.
18 July 2026 · 2 min read
What BMI Does and Doesn't Tell You
BMI is a quick screening number, not a diagnosis. Learn what body mass index measures, how to read the categories, and the important things it misses — like muscle and fat distribution.
1 July 2026 · 2 min read