ELI5: Explain Like I'm 5

Body mass index

Ok kiddo, so body mass index, or BMI for short, is a way to check if someone is a healthy weight for their height.

To find out your BMI, we need to do some math. We take your weight in kilograms (which is a measure of how much you weigh) and divide it by your height in meters squared (which is a fancy way of saying we multiply your height by itself).

For example, if you weigh 25 kilograms and you are 1.2 meters tall, we would do this:

25 kg / (1.2 m x 1.2 m) = 17.36 BMI

Now that we know your BMI, we can figure out what it means.

If your BMI is less than 18.5, it means you might be underweight and need to eat more healthy foods to gain weight.

If your BMI is between 18.5 and 24.9, it means you are a healthy weight for your height. Keep up the good work eating healthy foods and exercising regularly!

If your BMI is between 25 and 29.9, it means you might be overweight and need to eat healthier foods and exercise more to lose some weight.

If your BMI is 30 or higher, it means you are obese and need to talk to a doctor about ways to lose weight and become healthier.

So, BMI is a simple way to check if you are a healthy weight for your height. Remember to eat healthy foods, exercise, and talk to a doctor if you have any concerns about your weight or health.