EDITOR’S NOTE: The podcast Chasing Life With Dr. Sanjay Gupta explores the medical science behind some of life’s mysteries big and small. You can listen to episodes here.

(CNN)— Think speeding up your metabolism is key to losing weight? Metabolism has grown into one of the biggest buzzwords in the wellness industry — a tricky code that, if deciphered, is believed to unlock the secrets of weight loss and overall health.

Despite the term’s ubiquity, one scientist says many people don’t understand much of how this basic bodily process works.

“They think it has something to do with how much food we can eat without gaining weight or something like that,” Dr. Kevin Hall told CNN Chief Medical Correspondent Dr. Sanjay Gupta recently on his podcast, Chasing Life.

Hall wants to elevate metabolism for different reasons. “Metabolism is just this incredible biochemical process that basically turns the food that we eat and the oxygen that we breathe into essentially … everything we are and everything we do,” he said.