Lecithin is an emulsifier, typically produced as a byproduct of soy production which also has been used for a number of health purposes. It was originally derived from egg yolks and can be found in other natural sources. But soy has become the most practical source for commercial production of lecithin. As an emulsifier, lecithin allows things like oil or fats to blend into water other liquids. It creates a more uniform substance from two that might otherwise separate. By being able to form this simple task, lecithin is used in everything from foods to cosmetics to paints to detergents. Lecithin is an essential part of cell membranes and acts to regulate the transfer of fluids in and out of a cell. Lecithin is often mixed with certain herbs and supplements including kava kava to increase absorption. Lecithin also helps the body absorb and utilize nutrients taken in from food. Lecithin can regulate the solubility of fats, and as such it seems to have a positive effect on cardiovascular health and may play a role in preventing heart attacks and strokes. Lecithin is also found in bile where it helps keep fats emulsified in the liver, which limits fatty buildup and works to keep it clean. Additionally, lecithin is a component of the thin myelin sheath that protects the brain and spinal cord. It is believed that lecithin assists in the communication of cells, and perhaps this is why it has been studied for possible usefulness against various neurological diseases such as Alzheimer’s or Tourette’s. This increased communication between cells may also explain why lecithin has been reported by some users to have a positive effect on cognitive function and memory. Additionally, lecithin has been associated with sexual health as well as healthy hair, skin and nails. It has a simple action of emulsification that can be applied universally. Just as lecithin has become a versatile aspect of industry, it seems that the body too has its own long list of applications for this compound.