An active biological process, not just an effect of humidity
Contrary to appearances, these wrinkles are not passive. It is a complex reaction orchestrated by our autonomic nervous system. After a few minutes in the water, our blood vessels contract, creating a tension that forms these very special folds. Far from being a simple side effect, it is a mechanism perfectly controlled by our body.
A tip from nature to better understand
But why does this system exist? The answer can be summed up in one word: grip! Research conducted at Newcastle University suggests that these wrinkles work like the tread patterns of a car tire, improving our grip on wet surfaces.
Think of our ancestors harvesting aquatic plants or handling tools near watering holes: these folds were a real asset. This is what you might call an integrated anti-slip system, the result of millions of years of evolution.
