What Ma said about Internal Heat

I was a curious kid and I must have asked Ma a million times.  My Ma wasn't exactly a Harvard graduate but she could explain anything under the sky and even those not under.  I should know.  I was at the receiving end.

So what did Ma say about Internal Heat?  Well, its all those fire accumulated inside your body.

How did the fire get in there?

Fried foodstuff.

But, how Ma, how?

See?  The fire (heat) from the stove got into the oil. When you fry your foodstuff, the "fire" goes into the food.  You eat the food and the "fire" goes into your body.

So I was an impressionable kid.