So the sweat glands basically produce sweat which consists of water, it also consists of waste products such as urea, as well as ourion, such as sodium. And so what these sweat glands do, and these sweat glands are shown in green, they basically produce this substance and secrete and excrete the substance onto the surface via these sweat pores. And then the heat that rises from the blood vessels moving that blood along the dermis is used to actually vaporize that water from our body, from the surface of our skin. Now, another thing that actually takes place on the skin is something called transepidermal water loss. And this is not the same thing as sweating. So actually, water can actually diffuse across the upper portion of our skin.