Researchers at Imperial College London have discovered a way to slow the effects of ageing in mice.

They suppressed the geneA gene is the basic unit of heredity. that produces the proteinLarge biomolecules made of up amino acids, which in turn are made up of DNA. interleukin-11. This improved their senses, muscle function and metabolismThe chemical processes within the body which produce energy. It derives from a Greek word meaning "change".. It prevented cancer, let them live 25% longer lives and allowed them to keep their glossy dark fur.

Humans also make interleukin-11. The new process might have the same effect on us. Trials have already begun.

Extended youth is on the horizon. Maybe eternal youth will follow.

Imagine a life where we never start to slow down. Our joints and limbs never ache. Injuries would heal so quickly.

Eternal youth would clear hospital waiting lists.

But being young can be hard work. "Old age, believe me, is a good and pleasant thing," said Ancient Chinese philosopher Confucius. "It is true you are gently shouldered off the stage, but then you are given such a comfortable front stall as a spectator."

Of course Confucius did not enjoy eternal youth. If he had, maybe he would have thought differently.

Would you want to be young forever?

Yes! Only a fool would say no. Imagine an endless life at the peak of health.

No! Maturing is one of life's most interesting experiences. And we would lose any sense of youth's specialness.