3D map shows that we are covered in germs

Thanks to new 3D bacterial maps of the human body, we can see exactly which parts of us germs love the most.

Bacteria are everywhere, from our heads to our toes.

We all know this, but because the microbes are so tiny, we can't actually see them—which means we don't really need to think about them, right?


The researchers, based out of the University of California in San Diego, say that the maps reveal critical information about a person, including what kind of food they eat, medicines they take, and any body products they use.

These researchers say they can use this information to tailor health programs based on individual needs.

"It's well known that these microbial communities have an impact on health and disease, so we have an opportunity to think about precision medicine," said Pieter Dorrestein, professor of pharmacology and lead author of the study, in an interview with CNN.

Another interesting finding was that even though the volunteers were told not to wash or use any products for three days, the researchers still found residue from beauty items.

In fact, fourteen percent of all the molecules identified were from things like shampoo and deodorant.

Sunscreen chemicals were found in high amounts around the neck, even though the volunteers hadn't used any in the three days before the scan.

Weirdly, the researchers are unsure why chemicals would still be in the neck area while none showed up in the places the sunscreen was most applied, like the face and hands.

The most interesting findings were where certain types of bacteria and chemicals congregated.

For example, the part of your body that has the highest concentration of microbes is not your mouth or even your bum but your feet! Shocked?

The scientists say it's the combination of exposure to the environment, darkness and dampness.

Also, the propionibacterium, the bugs that cause those deep, painful zits, were found not only on the face but also all over the head and upper back.

Furthermore, bacteria aren't just one microorganism, even though we often think of them all together.

The study found over 850 different strains on each person and each person's mix of bacteria, called a chemical signature, is unique to them, providing an identifiable biomarker like a fingerprint or retinal scan.

Fascinating as it is, In the end, this information is just the beginning of what scientists say they want to learn about the human microbiome.

"We can see them but we don't know what they're doing there. At this point it's a mystery," said Dorrestein.

Guess you would think twice now before you stick your hand in your mouth!


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