Just how important is insulin sensitivity to health and long life?

Very important, as I continue to emphasize. Let’s take a look.

FGF21 is commonly known as the “starvation hormone”. It increases during prolonged fasting in animals and humans.
When scientists added an extra gene for FGF21 to mice, they lived much longer than normal mice.

That’s all they did, just extra FGF21 produced.

FGF21 did not affect food intake, NAD+ metabolism, AMPK, or mTOR, all of which are the usual suspects in lifespan extension.
It did increase insulin sensitivity, however.

And that was enough to extend their lifespan, by a lot, an average of 36%.

Until we humans have FGF21 injections available, we’ll have to do something else to increase insulin sensitivity.
(And since FGF21 is a peptide hormone, it would have to be injected, as it would not survive digestion.)

Several things increase insulin sensitivity:
•Intermittent fasting
•Exercise
•Low-carb eating
•Fat loss
•Muscle gain
The above is the first 25% or so of the email newsletter I sent out this morning.

If you want to read more like this, sign up for my newsletter ---> roguehealthandfitness.com/email/
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