ELI5: Explain Like I'm 5

Waist-hip ratio

Waist-hip ratio is a way to measure how big your tummy and your hips are compared to each other. To figure out your waist-hip ratio, you need to do a little bit of math. You take a measuring tape and measure the smallest part of your tummy (around your belly button) and the widest part of your hips (usually around your bum). Then, you divide the waist measurement by the hip measurement. This gives you your waist-hip ratio!

Now, why do people care about their waist-hip ratio? Well, it turns out that having too much fat around your tummy can be bad for your health. People with a higher waist-hip ratio tend to have a higher risk of things like heart disease, diabetes, and other health problems. So, by measuring your waist-hip ratio, you can get an idea of whether you need to work on losing some of that tummy fat to stay healthy.