Resistance training is key for mobilizing abdominal fat and for creating more lean mass and also increasing the amount of crosstalk between their skeletal muscle and our stored fat through little things called myokines, which are hormone signals that are released during exercise and released from the skeletal muscle. So if we say, okay, let's do resistance training to really re-comp the body. We also want to increase our protein intake because we see if you're doing resistance training with a higher protein intake, then we have complete re-comp over the course of 12 weeks. And it's a very powerful motivating tool for women because for the most part, women have been excommunicated from the strength world until recently.

Not the same as your bicep or chest muscle, which is called skeletal muscle.

A study that had seniors complete a 12-week exercise program found that skeletal muscle mitochondrial DNA increased 53% after training.

If we can correct our nutrition and we gear it towards skeletal muscle health, then we can change the trajectory of aging.

First, we need to understand the anatomy of a skeletal muscle, which includes many, many layers of long, thin strands.

This includes things like crush injuries, like when a piano falls on someone's legs, or tumor lysis syndrome, which is cancer treatment that causes lots of tumor cells to die all at once, or rhabdomyolysis, which is rapid destruction of skeletal muscle cells.

muscle cells. This would be an example of skeletal muscle cells right over here. That's

How our nerves will provide that stimulus to move skeletal muscle because we tell it to.

These 1.5 million people will not be as good at sprinting, something that requires your fast-twitch skeletal muscle to act differently.

Another phase, phase three, we talked about is muscular hypertrophy or the growth or the enlargement of skeletal muscle fibers.