bacteria

What is an invasive species?

Invasive species can mean a lot of things, from fungus to feral pigs and European starlings to kudzu vines. Basically, it's anything brought to a place, either by humans or nature, that didn't originate there. They aren't always a problem, but many times they can wreak havoc on the local ecosystem. Learn all about these invaders today.

SYSK Selects: Fecal Transplants: You Gonna Drink That Poop?

In this week's SYSK Select episode, there's an emerging field in health care called medical ecology that's concerned with understanding how the 100 trillion microbes living inside us keep us healthy. The field's first breakthrough is the fecal transplant, taking poop from a healthy person and putting it into the gut of a sick person. It's a real thing and it actually works.

How Gene Editing Works

With the discovery of a surprising immune response in E coli bacteria, we are facing a new era of freedom from genetic mutations that lead to disease by simply and precisely editing our genes. But there is also a potential dark side to gene editing.

Does the body replace itself?

Does the human body really replace itself every few years? The answer is yes, but different parts of the body do so at different rates. Learn all about which parts of your body are the speediest, and which take the longest to regenerate.

Virus Talk with Josh and Chuck

Viruses are big jerks that invade regular cells and hold them hostage, making you sick while they're doing it. Learn everything you ever needed to know about viruses, including how the common cold works.

How the Human Microbiome Project Works

If it was possible to take a full scan of all of the DNA of every cell in and on your body the results would be startling: Only 1 percent would be human. The other 99 percent comprises all of the bacteria, fungi, viruses and other microbes you literally cannot live without.

Halitosis: Worst Smell Ever?

Occasional bad breath is one thing, halitosis is another. Or is it? From its odd origins as a marketing ploy to modern weight loss diets that can induce this embarrassing condition, you can learn all about bad breath here.

Remember the MRSA scare of a couple years ago? Remember, it was before the swine flu scare but after the SARS and avian flu scares. For those who can't recollect, MRSA is a potentially fatal, antibiotic-resistant staph infection, essentially a superbacterium that a lot of researchers believe is the result of the overuse of things like antibacterial soap and the misuse of antibiotic medications. One of the things that made it so frightening was that otherwise healthy people were catching it in hospitals.

The cookie is on the kitchen floor and it's decision time. Is there any scientific truth to the five-second rule? Chuck investigates and finds some interesting studies about this well-entrenched social code.