So, one of th raging debates in medical science over the last two decades concerns the importance of genetics vs environmental factors for diseases: Are diseases genetically based or due to environmental factors, such as pesticides and toxins? This debate is one that might soon change its course (and collapse) due to the fascinating field of epigenetics, which blows this binary to pieces, by examining how lifestyle and environment can alter the expression of genes. Nova has a fascinating video about epigenetics, which is definitely worth watching.
March 22, 2009