Mummification as a scientific process of preserving the body, was very effective. During the process, as much moisture was removed from the body as possible, along with most of the internal organs. This helped to slow down the process of decay. Mummies as old as 3,000 years have been found in remarkable states of preservation. Well-preserved mummies, such as that of the young Pharaoh Tutankhamen, have provided a wealth of interest and information for researchers and history buffs alike. Today, Egyptologists and other scientists study ancient mummies in order to understand Ancient Egyptian diseases, medical treatments, life spans, and even genetics. The process of mummification perfected by the Ancient Egyptians provides a fascinating window through which the world can look into and learn about their cultural practices and scientific innovations.