Anti-ageing scientists extend lifespan of oldest living lab rat

Research teases hopes that rejuvenation of the body may become commonplace within our lifetimes'

Scientists working on an experimental anti-ageing therapy claim to have broken a record by extending the lifespan of a lab rat called Sima.

Named after the Hindi word for limit" or boundary", Sima is the last remaining survivor from a group of rodents that received infusions of blood plasma taken from young animals to see if the treatment prolonged their lives.