Dr. Dave Rabin

We only have so much blood to go around in the body to feed all of our organ systems at once. And so when you have something that's supposed to trigger a survival threat, that's supposed to trigger the sympathetic fight or flight nervous system, evolutionarily for hundreds of millions of years, that would include

We only have so much blood to go around in the body to feed all of our organ systems at once. And so when you have something that's supposed to trigger a survival threat, that's supposed to trigger the sympathetic fight or flight nervous system, evolutionarily for hundreds of millions of years, that would include

being chased by a predator, running out of food, running out of water, running out of air, being potentially excommunicated by your community or being deprived of sleep. These are like the six major factors that potentially threaten our survival because we need those things to survive and thrive and reproduce.

being chased by a predator, running out of food, running out of water, running out of air, being potentially excommunicated by your community or being deprived of sleep. These are like the six major factors that potentially threaten our survival because we need those things to survive and thrive and reproduce.

And so if one of those things is threatened, it's supposed to trigger our fight or flight stress response. If we're stressed out, but none of those things are being none of those boxes are being checked on the survival, six survival key factors, then it's not supposed to trigger our fight or flight nervous system.

And so if one of those things is threatened, it's supposed to trigger our fight or flight stress response. If we're stressed out, but none of those things are being none of those boxes are being checked on the survival, six survival key factors, then it's not supposed to trigger our fight or flight nervous system.

And we have another part of our nervous system called the vagus nerve system or the parasympathetic rest and recovery system that governs all recovery.

And we have another part of our nervous system called the vagus nerve system or the parasympathetic rest and recovery system that governs all recovery.

So sympathetic nervous system fight or flight takes all of our blood and available resources when we're in an actual survival threat and then clamps down on the vessels that go to reproduction, digestion, immunity, rest and recovery, all the things we don't want. to be getting our blood and resources when we're running from a bear, right?

So sympathetic nervous system fight or flight takes all of our blood and available resources when we're in an actual survival threat and then clamps down on the vessels that go to reproduction, digestion, immunity, rest and recovery, all the things we don't want. to be getting our blood and resources when we're running from a bear, right?

You don't want to be thinking about reproduction when you're running from a bear. You want to be getting away from the bear. All the blood, the simple concept is all the blood vessels get squeezed to the organ systems and empathy systems and creativity systems to get us

You don't want to be thinking about reproduction when you're running from a bear. You want to be getting away from the bear. All the blood, the simple concept is all the blood vessels get squeezed to the organ systems and empathy systems and creativity systems to get us

to safety and it sends that blood to our skeletal muscles, our motor cortex of our brain, our fear center of our brain, our heart and our lungs to literally just get us to safety. When we get back to safety, then the blood vessels switch.

to safety and it sends that blood to our skeletal muscles, our motor cortex of our brain, our fear center of our brain, our heart and our lungs to literally just get us to safety. When we get back to safety, then the blood vessels switch.

And so the blood vessels clamp down to those skeletal muscles in the heart and lungs and then redirect all the blood as the blood vessels open up to reproduction, digestion, immunity, sleep, you know, creativity, empathy, all the good stuff. And they're not generally both active at the same time most of the time. So it's a resource allocation problem.

And so the blood vessels clamp down to those skeletal muscles in the heart and lungs and then redirect all the blood as the blood vessels open up to reproduction, digestion, immunity, sleep, you know, creativity, empathy, all the good stuff. And they're not generally both active at the same time most of the time. So it's a resource allocation problem.

So if you can imagine when you're stressed out all the time, when we as humans are stressed out all the time because of everything that's going on in the world, we're literally sending all our blood to our skeletal muscles, heart, lungs, fear center of our brains, motor cortex.

So if you can imagine when you're stressed out all the time, when we as humans are stressed out all the time because of everything that's going on in the world, we're literally sending all our blood to our skeletal muscles, heart, lungs, fear center of our brains, motor cortex.

And we're taking that blood from our recovery nervous system, the nervous system that is responsible for healing our bodies and also delivering nutrients to reproduction, immunity, digestion, sleep, and for helping us to take waste away from those organ systems. So if you didn't have garbage pickup and you didn't have food for an extended period of time, how long would we last?

And we're taking that blood from our recovery nervous system, the nervous system that is responsible for healing our bodies and also delivering nutrients to reproduction, immunity, digestion, sleep, and for helping us to take waste away from those organ systems. So if you didn't have garbage pickup and you didn't have food for an extended period of time, how long would we last?