How Fasting Affects Your Body | DrEricBergDC

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so today i want to cover all the different effects that fasting can

create on your body i’ve done a lot of videos

but i wanted to create one video especially for someone new to fasting so

you can see how powerful fasting is for the entire

body so let’s start with your brain the first thing that fasting

will help you with is it will help you stimulate something called bdnf

brain derived neurotrophic factor you can look at this as

miracle grove for the brain it basically helps to repair

and regenerate neurons yeah you would think if you stopped eating

your brain cells would die no they thrive increasing stress

resistance so your brain becomes resistant to

stress so it can handle more stress interesting increased

neurogenesis which actually is part of this right

here so you’re generating the growth of more

neurons and nerve cells and nerve support cells

especially if there’s damage if you have alzheimer’s

parkinson’s this is very very important then we have the production of more

mitochondria mitochondria is the energy factories in

all the cells including your brain so if these guys

work right here you’re going to have memory you’re going

to be able to focus you’re going to have better cognitive function

fasting helps improve the number of mitochondria in the brain also

decreases inflammation and i don’t even need to get into that

because i think most people understand how deadly inflammation is on the

different parts of the body but there’s probably nothing more

powerful than fasting to handle inflammation

okay there’s more things that fasting will do but i think that’s a good

summary now the liver the first thing that

fasting will help you with is making insulin more

sensitive which is going to help blood sugars

pre-diabetes diabetes most people have insulin

resistance and so insulin doesn’t work that well

fasting helps make insulin work so your blood sugars

are going to do better your absorption of nutrients are going

to do better also fasting helps in the detoxification process

both detoxification of the phase one phase two enzymes to take poisonous

chemicals and turn them into water-soluble harmless particles

as well as stimulating something called autophagy

which is your cells recycling mechanism to take

damaged cells and make them new again fasting helps increase your antioxidant

network also fasting is amazing to reduce a fatty liver to take the fat in

the liver and use that for energy and clear out

the fat on the liver thereby increasing the function of the

liver in the detoxification of hormones its metabolism of food in the storage of

vitamins in the production of bile the list goes

on and on and on fasting helps decrease inflammation in

the liver as well as in conditions like hepatitis

if you’re going to decrease inflammation you’re also going to decrease

fibrosis that’s scar tissue and fibrosis turns into cirrhosis and then we get to

the gut okay we’re talking about the small

intestine and the large intestine fasting increases the diversity of

microbes in your gut apparently that stress causes

this survival mechanism of different types of microbes growing which is

fascinating fasting decreases inflammation in the

gut and there’s a lot of conditions that involve inflammation also it

decreases sibo very very important i’ll put a link

down below for more information on that if you haven’t

heard that uh video also it fasting helps

make your microbiome your friendly bacteria live

longer okay then let’s talk about the immune systems

huge effects fasting will actually help you become immune to pathogens

because the white blood cells increase in strength and size

and in their weaponry to kill off pathogens

periodic prolonged fasting like 72 hours can increase

stem cells in your immune system so you’re basically growing

a new immune system now the fasting effect on the pancreas

is huge because if you think about it when

you’re eating you’re constantly triggering

insulin all the time especially when you’re snacking

so that’s creating damage in little cells that make insulin it’s in the

pancreas well when you fast you reverse the flow

and you give the cells that make insulin a

chance to heal and rejuvenate so you start to develop insulin

sensitivity insulin starts working better that’s why if you’re pre-diabetic

if you’re a diabetic it’s essential that you do intermittent

fasting fasting is going to help your blood

sugars then we get to the fat cell fasting stimulates lipolysis basically

the breakdown of fat okay so we get rid of the fat cells if

they’re too big if they’re too stuffed they reduce in size

and you start generating ketones so you turn this into ketones which can be used

for energy your brain loves ketones you get more

energy from ketones you improve the insulin resistance

situation so if you’re resistant to insulin that

condition improves in fact fasting is the thing

that creates a faster metabolism which is

very different than starving or some low-calorie

diet i’ll put a link down below for more information on that because i just did a

video on that very interesting okay leptin it

decreases leptin so you’re going to find that the the

messages for hunger are going to go way down

also it reduces inflammation which is going to help you

in correcting insulin resistance okay let’s talk about the muscles the

first thing that’s going to happen is insulin is going to become more

sensitive so it’s going to work better so because

insulin is anabolic which means you’re going to

actually be able to build up your muscles the more insulin

works you’re also going to get protein sparing

so when you fast the muscles go into a certain state

where they stop breaking down okay so it’s going to help you

prevent protein loss from your muscles also increasing stress resistance so

your body just becomes overall stronger and more fit to survive

then we get to the heart muscle we increase

more parasympathetic now parasympathetic is the opposite of sympathetic which is

flutter fight stress mode so this is relaxation mode

when people do fasting they feel calm their heart relaxes

they’re able to rest and digest better also the heart rate comes down and

there’s an increase in something called heart

rate variability normally you have these heartbeats that are supposed to be

on average i’d say 72 beats per hour right

well you would think in a healthy heart you need the same amount of time for

each beat but that’s not the case the healthier

the heart the more erratic or the more variable

the heartbeat should be because variability helps you in the

adaptation of certain things and it’s less

rigid so there’s a test that you can do i used to do it in my office that

measures this and people with a very healthy heart

would have a very high hiv and they would be able to

handle a lot of stress because they have more parasympathetic

and they have a huge recovery backup system the more

rigid the heart is the stiffer the arteries

the less variance you have between the heartbeats itself

okay less blood pressure because things are more elastic

and increased stress resistance so the heart becomes stronger

to fight stress so in summary you can see that fasting creates

some very cool effects and i didn’t get into the anti-cancer effects

and there’s many other effects but at least this will convince you

to try fasting yourself thanks for watching

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