Weight Loss

A blood pressure reading of "120/80" means nothing until you know the categories. Here is the full AHA chart, how ranges shift with age, and when a number becomes an emergency.

Fasting, post-meal, random, and HbA1c blood sugar tests each measure something different. Here is the complete normal-vs-prediabetic-vs-diabetic chart for all four.

Calories tell you how much to eat; macros tell you what to eat it as. Learn how to split any calorie target into protein, carb, and fat grams for fat loss.

Two people can share the exact same BMI and have very different heart disease risk. Waist-to-hip ratio explains why — and when you should trust it over BMI.

Walking, running, and even fidgeting all burn calories differently depending on your bodyweight and pace. Here is the real math behind those numbers.

A BMI of 25 is "overweight" for a Western adult, but research shows South Asians carry significantly more body fat at the same BMI — and face higher metabolic risk. The WHO recognises lower BMI thresholds for Asians. Here is what the research says and why it matters.

Body fat percentage is a more accurate measure of health than BMI. But how is it calculated, what is a healthy range for men and women, and which measurement method is most accessible? This guide covers everything.

The BMI scale classifies weight from underweight to obese — but what counts as healthy varies by age and sex. This guide explains the WHO chart, what your number actually means, and the well-documented limitations of BMI as a health measure.

Most people confuse BMR and TDEE — and eating at your BMR instead of your TDEE is the #1 calorie calculation mistake. This guide explains the difference and tells you exactly which number to use for your goal.

TDEE is the total number of calories your body burns in a day — at rest and through activity. It is the master number behind every effective diet and fitness plan. This guide explains how TDEE is calculated and why it matters more than BMR alone.

The answer to "how many calories per day" is not the same for everyone. Your TDEE — Total Daily Energy Expenditure — depends on your weight, height, age, sex, and activity level. Here is the exact formula and tables by goal.