Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

J-P. That's Y-A-K-U-L-T dot-C-O-J-P. When it comes to a guide for your gut, count on Yacol.

This is Scientific American 60-second science. I'm Christopher in Dallata. Got a minute?

When we look for life beyond Earth, we usually search for its chemical signatures.

The recent discovery of methane emissions on Mars, for example, is a possible sign of bacterial life.

But there is another way to detect life. See if it moves.

Everything moves.

I'm looking for something that I know that should be alive and does not move,

but up to now I have not seen anything like this.

Giovanni Longo, a physicist at the Ecole Polytechnique Federal in Lausanne, Switzerland.

It's extremely interesting because it gives us a possible new definition of life if you want,

if it moves, then it's alive.

Longo and his colleagues studied the movements of bacteria, yeast, mouse, human, and plant cells,

using the nanocensor in an atomic force microscope.

And they found that every living cell they studied vibrated in tune with the metabolic processes

going on inside. When they altered bits of the cell's metabolism, the vibrations changed.

When they killed the cells in the sample chamber, the vibrations stopped. The findings appear

in the proceedings of the National Academy of Sciences.

Using their nanocensor search technique,

...