Take the cholesterol out of a cell wall and the cell leaks. Take the cholesterol out of the skin and the sun can shine all summer and make no vitamin D. Take the cholesterol out of the testicle and there is no testosterone. Take the cholesterol out of the ovary and there is no oestrogen, no cycle, no baby. Take the cholesterol out of the adrenal gland and there is no cortisol, and you cannot get out of bed, let alone run from anything. Take the cholesterol out of the liver and there is no bile, and a chip goes through you like a coin through a machine. Take the cholesterol out of the brain, which holds a quarter of all the cholesterol in your body, and you are holding a wet sponge. Take the cholesterol out of a nerve and the wire has no insulation. Take the cholesterol out of a wound and it does not close. Take the cholesterol out of your mother's milk and your brain never finishes building. There is no organ on that list that works without it. There is no plant that contains it. There is no animal that ever went without. Your liver makes most of it on purpose, every day of your life, whether you eat any or not, because the body has decided this is the one thing it will not run short of. They found the substance that every cell in you depends on, watched the body guard it with its own factory, and gave you a tablet to switch the factory off.