4 ms·

Extreme stress has effect on DNA

• setori88 17y ago
  Of course it does! All our experiences have an effect on our DNA, how else does evolution happen!?
  • David 17y ago
    The point of the article is that they've discovered a concrete physical link between environment and DNA. We knew it happened, but now we have an instance. It's a pretty big step. Aside: Evolution works by natural selection across generations - the ones with the good genes live, bad genes lose. An individual's genes don't need to change for the process to take place. Of course, random mutations in DNA are a big part of what cause the variation that results in good and bad genes, so yes, sometimes changes happen within an individual. But those are random changes, whereas this is a response to the immediate environment.
    • setori88 17y ago
      mate, one can turn genes on and off simply by changing ones diet
• dnsworks 17y ago
  The tiny sci-fi geek in me reads this and is thinking, "aw yeah! Just like the later Dune books!"