Rhonda Patrick

Like, you're going to have improved glucose regulation if you are engaging in aerobic exercise.

But if you're, again, comparing the volume of exercise being the same and comparing sort of a continuous lower-to-moderate-intensity exercise with high-intensity interval training or a more

you're going to have more improvements in glucose regulation with the higher intensity exercise.

And that somewhat has to do with the utilization of glucose, which produces lactate as a byproduct.

It's not necessarily a byproduct.

We know it's not a byproduct anymore.

It's an active metabolite that is not only an energy source for mitochondria, it's also a signaling molecule.

So in other words, it's a way for your muscles to communicate with glucose

your muscles and proteins in your muscles.

It's also a way for your muscles to communicate with other organs like the brain and the heart and the liver and your kidneys.

And so that lactate actually is a signaling molecule to the muscle cells, the glucose transporters in the muscle then come up.

It's called translocation.

They come up to the cell surface of the muscle and they're open and primed and ready to take in a lot of glucose.

And lactate's really key in that process.

So if you're producing lactate by having a more intense workout, you're going to have more GLUT4 transporters that are translocating up to the muscle cell surface where they're ready to take in the glucose.

So high-intensity interval training is definitely a good way to improve glucose regulation.

But the lactate isn't the only reason for that.

Right.

You're talking about engaging the muscles.

There was a study that was published, oh gosh, not a few months ago.