There has been what the media are reporting an anti-ageing breakthrough. As usual the research has been with simple organisms, in this case yeast cells. The researchers were able to increase the lifespan of the cells by interfering with a “toggle switch” in the cells that controlled cell life, by causing the cell to switch between two ageing pathways, and in effect not being able to make up its mind what to do. It is hypothesised that the same process could be done in other organisms. It is a long shot to think that this, while interesting, is presenting some sort of fountain of youth for humans. Yeast are a fungus, and a much simpler organism than any animal. It is not known if the switching trick would work in an animal organism, or even plants, and if there could be cancer effects from it, actually lowering lifespan. So, the claim “I don’t see why it cannot be applied to more complex organisms,” remains unjustified.
