Some would argue that this doesn’t matter – the breeze can still rattle objects along its path. Gordon’s team saw some signs of this: the yoghurt they studied could nudge the microbes in mouse guts into activating genes for digesting carbohydrates, albeit temporarily. Wendy Garrett later found that a strain of Lactococcus lactis can help mice without sticking around – or even staying alive.
can help without sticking around or even staying alive
