Okay kiddo, so inside our bodies, there are little things called enzymes that help us do important things like turn food into energy. One of these enzymes is called phosphoglucomutase (don't worry, we'll call it PGM for short).
But some people have a problem with their PGM enzyme and don't have enough of it to work properly. This is called a deficiency.
Now, PGM is really important for our bodies to be able to turn sugar into energy. Without enough PGM, our bodies can't use sugar the way they should. This can cause problems like low blood sugar, muscle weakness, and even seizures.
But don't worry, we can do some tests to find out if someone has a PGM deficiency and if they do, doctors can help them manage it with things like special diets.