The plant gives the fungi nutrients through its roots and in turn the fungi enable the plant to increase its nutrient and water absorption capabilities.
You see, as the Earth gets hotter, seawater expands, and ice sheets, glaciers, and frozen places like Greenland and Antarctica add water to the ocean as they melt.
When a load is applied, the water pressure within the soil increases, and if it can't flow out fast enough, it forces the particles of soil away from each other.
So if your blood pressure runs higher, you could always take a look at your hydration status and see if you can increase your water intake and see if that helps lower your blood pressure.
Pigs don't have sweat glands, they have to add moisture to their skin in order to get it to evaporate and take away heat. And mud has moisture in it. It sure does. Otherwise it would be dried dirt.