Scientists from the University of California tinkering around with some genes and hormones have managed to lengthen the life of Caenorhabditis elegans (a type of worm). The worms lived for the human equivalent of 500 years. The researchers inhibited insulin signalling in the worms, and removing their reproductive systems alone increased the life span by 60%. Insulin pathway controls life length in mammals too, therefore the research could also work on mammals. Just how "active" and healthy can one be without any reproductive systems? I am not convinced this is ready to be tried out on humans just yet...Full Story Here