Welcome to the Get Fit Guys, quick and dirty tips to slim down and shape up.

My name is Ben Greenfield. I'm the Get Fit Guy, and in today's episode, you're going to discover

how to reverse aging with exercise. You want to know how to reverse nearly 40 years of aging?

Well, it's simple.

Lift heavy stuff.

That's right.

Lift heavy stuff.

In the study, resistance exercise reverses aging in human skeletal muscle.

It was proven that six months of progressive resistance training, as in weight training

that gets heavier over time, made the gene expression of aging mitochondria become

significantly younger. See, muscles can become smaller and weaker with age. That's known as

sarcopenia. And evidence shows that a key part of this decline occurs in the mitochondria,

a component of muscle cells that is the ultimate powerhouse, the primary

engine of energy production. Now, from this study, which was done on men, an average age of 70 years

old, researchers reported that the older individuals were able to improve strength by approximately

50% to levels that were only 38% less than that of young individuals.

This means that old people engage in weight training closed the strength gap between themselves and their counterparts who were nearly 40 years younger from 59 to 38%, which is an improvement

of almost 36% in a mere six months.

Now, muscle biopsies from that study showed a remarkable reversal

of the expression of 179 genes associated with aging. Now, the researchers some things up

by reporting that healthy older adults show a gene expression profile in skeletal muscle

consistent with mitochondrial dysfunction and cell death compared with

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