How Bacteria Rule Over Your Body – The Microbiome

by birtanpublished on September 10, 2020

microbes are everywhere on your phone in your water bottle on your hands before you wash them on your hands after you wash them and literally everywhere else on top of you – microbes are omnipresent at any moment and there is nothing we

Can do about it so millions of years ago we made a pact we give them shelter and food and in turn they work for us but the more we learn about this partnership the more it looks like a cold war inside our mother's womb humans start out

Sterile when we are born and traveling through the birth canal billions of our mother's bacteria cover every single part of our bodies this is an essential part of human health children born via c-section have a higher rate of asthma

Immune diseases and even leukemia so our bodies do not only accept the invasion of microorganisms they welcome it over millions of years we co-evolved to make the best of our relationship mother's milk for example contains special sugars

That are meant to feed and support certain groups of microbes work as a decoy for others and help to modulate the immune system it takes up to two years until a healthy microbe community has formed every human has their own

Unique microbiome made up of bacteria viruses fungi and other organisms we have three categories of guests on and in our bodies one quiet passengers that do their own thing and are politely ignored by being there they take up

Space and keep more aggressive intruders in check two guests that harm us but with whom we've learned to live for example bacteria that literally create acid that melts our teeth if we don't brush enough

They want to take up as much space as they can and we don't want them to but we can't get rid of them entirely three friendly fellows that our bodies want to have around most of them are a community of 380,000 billion bacteria from up to

5,000 different species that live in our gut these gut microorganisms help us digest food and pull additional calories from things we can't digest ourselves unfortunately our gut is also the perfect point of attack for intruders

So it's guarded by an aggressive army our immune system to survive here how microbiome co-evolved with us to be able to communicate with our body the most important part of that is to ask the immune system to not kill them but they

Also have a real motivation to keep our gut healthy so some of them produce a messenger substances that help to educate the immune system and others stimulate the gut cells to regenerate faster but over the last few years

Evidence has emerged that the influence of our gut microbiome goes much much further it might even talk directly to our brain we've observed a few curious things 90% of our body's serotonin an important messenger substance for nerve

Cells is produced in the gut some scientists think the microbiome does this to communicate with the vagus nerve the information highway of our nervous system other examples are bacteria that stimulate immune cells in the gut so

They send a kind of alarm signal to the brain here it activates immune cells that help the brain recover from injuries since the brain decides well we eat the microbiome is interested in a healthy brain

A new field of science is opening up here and we're just on the verge of understanding how these complex systems inside our bodies interact but we are starting to see how much our microbiome actually influences us and our behavior

Take depression for example healthy rats fed microbes from the guts of depressed people began showing anxiety-like behavior and symptoms that look like depression and in early 2017 a study linked the microbiome to intelligence by

Connecting a certain set up of bacteria in newborns with better motor and language skills but it might also influence our daily lives tests with fruit flies showed that their microbiome influenced what kinds of food they

Craved this could mean your microbes are able to tell your brain which food it should get them although this is not a one-way street the seed for our microbiome comes from our mother but how it develops and changes is determined by

What we eat the organisms in our gut feed on different things some like fibers and leafy greens others go for sugars and starches and some love greasy fries and butter our gut is like a garden in which we constantly decide

What will grow and blossom if we eat healthily we breed bacteria that like healthy food if we eat a lot of fast food then we breed fast food loving bacteria life is hard so we can get trapped in a vicious circle

You have a stressful time and eat lots of burgers and fries and pizza this is awesome for fast food bacteria they multiply and multiply and take up space from vegetable living bacteria but even worse they send signals to the brain to

Continue what it's doing this makes you want more fast food which breeds more fast food bacteria which makes you crave fast food and so on this kind of self-reinforcing cycle could play a huge role in obesity but it's important to

Stress that you can fight this process and reverse it by eating healthily and breeding malls good bacteria beyond weight gain our microbiome has also been linked to other serious diseases like autism schizophrenia and cancer one of

The earliest symptoms of Parkinson's is actually gut problems if your body is overrun with bacteria that harm you there is often only one solution you bring in an army of good guys that's very easy you just transplant some

Healthy poop you do that by literally transferring poop from a healthy person into your gut this method is already used to cure diarrhea that's caused when c difficile bacteria take over a gut microbiome but we just don't know enough

About the complex interplay at work here yet for example a transplant from an overweight donor cured a woman's diarrhea but contributed to her obesity down the line this caused some ways and another study tried to reverse the

Effect poop transplants from slim people to obese ones gave them a more diverse microbiome and made them less sensitive to insulin both things that also happen when people lose weight we need to do a lot more science to really understand

How our microbes make us healthy or sick but whether we like it or not we need our microbiome and it needs us we'll never have our bodies to ourselves but we have gained a powerful ally if we can just keep the peace

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