Richard Francis discusses the new scientific field of epigenetics, the study of how stress in the environment can impact an individual’s physiology so deeply that those biological scars actually can be inherited by the next generations. In Epigenetics: The Ultimate Mystery of Inheritance he explains why researchers believe that epigenetics holds the key to understanding obesity, cancer, Alzheimer’s, schizophrenia, autism, and diabetes.
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Written in Code — Genes – what are they good for? Absolutely… something. But not everything. Your “genius” genes need to be turned on – and your environment determines that. Find out how to unleash your inner-Einstein, and what scientists learned from studying the famous physicist’s brain. Also, the bizarre notion that your children inherit not just your genes, but also the consequences of your habits – smoking, stress, diet, and other behaviors that turn the genes on. Plus Francis Collins on affordable personal genomes, and a man who decoded his own DNA in under a week.
Epigenetics is a fascinating field of genetics that studies how the epigenome and environmental, nutritional and social factors affect gene expression. Josh and Chuck explain how epigenetics works in this episode.
Homo sapiens have been around for 250,000 years - surely long enough to have become fully evolved?
It was thought that the dramatic extension of life spans during the 20th century eliminated natural selection, but new evidence shows that to be false.
Will selection always be natural, or could postmodern also mean posthuman?