Tay-Sachs Disease is a rare genetic disorder that causes waste to build up in the cells of the brain due to a lack of Hex-A enzyme attacking the neurological functions. There is no Cure. The average life span is between 2-4 years. This is our daughter who was diagnosed Novemeber of '05 (at 11mo.). She is our miracle and angel and currently going on her 3rd birthday. :)