Why Biased Worms Turn Voters - Naked Scientists NewsFLASH - 04.04.11

In this NewsFlash, why the Pioneer anomaly is not so anomalous, how a dose of cortisol can cut fear of heights, and how a common dye used to colour cells in the lab may increase lifespan. Plus, in televised debates, how a biased "worm" can seriously skew the results.