Tips & Guides
How Much Water Should You Drink Per Day? The Science of Hydration
The "8 glasses a day" rule is an oversimplification. Here is how to calculate your actual daily water needs based on your weight, activity level, and climate.
Knowledge & Updates
Blog
Tips, guides, and stories for schools, advocates, and farmers.
Posts tagged: fitness
Tips & Guides
How to Calculate Body Fat Percentage Using the US Navy Method
The US Navy body fat method is one of the most accurate ways to estimate body fat without expensive equipment. Here is how it works and what your number means.
Tips & Guides
BMI Calculator: What Your Body Mass Index Actually Means in 2025
BMI is the most widely used measure of healthy weight, but it has important limitations. Here is what your BMI means, how it is calculated, and what to do with the number.
Tips & Guides
What Is an XML Sitemap and How to Submit One to Google in 2025
An XML sitemap helps Google discover and index all your pages faster. Here is what it is, how to create one from a list of URLs, and how to submit it to Google Search Console.