Cholesterol is essential for cell membrane structure, including shape, fluidity, and membrane channel integrity.

“first it makes up a very important structural comp component of cell membranes so as you know a cell is a sphere we look at them and think they're circles but they're spheres and they're fluid right they they they aren't just like little perfect you know big bowling balls or you know balloons they actually morph and shape and move in these paths and this is what it's what allows cells to be next to each other and all sorts of things they also have channels across all of them and those channels are held in place by among other things cholesterol and phospholipids”