Hello Fellow Brick dudes, Graviola is a great fruit that boosts your immune system and fight against various pathogens. Ancient civilizations have used graviola to treat virtually all problems related to our immune system, cold, flu, infections etc. There are some studies that are investigating claims that graviola may treat even cancer. The findings seem to be very promising... not so good news for pharma companies :) According to Memorial Sloan Kettering Cancer Center " Extracts of graviola have been shown to be effective against a number of viruses, bacteria, and parasites in test tubes. Laboratory studies have also shown graviola to be effective against some types of cancer cells. It contains chemicals called acetogenins, which are thought to be the active ingredient." Check it out, and tell people about it. There are thousands of people who need it!