I started a thread with this, but there is more...so I'll go find it...
"I wrote this into the topic of another thread and thought it was so interesting it should get a thread of its own!!!
It starts like this:
For over 15 years I have been aware that DNA mutates and changes over time. This awareness became clearer as time passed by. This morning I was reading a fascinating book on the bus on the way to work (I prefer the bus...I get to read then, whereas if I drive I don't). The book is named:
Energy Medicine in Therapeutics and Human Performance, by James Oschman...PhD.
That DNA mutates and changes over time is accepted, but these changes are small. In almost all organisms, however, DNA is renowned for keeping changes minimal.
The majority of mutational changes are not noticeable. This can be because they are a single base pair change, which more often than not, will code for the same amino acid, and produce no functional change. Other times it will code for a different amino acid, which may or may not change the function of a protein, and if it does change it does not always lead to a detectable change. Changes that do end up being significant are almost always bad changes (http://en.wikipedia.org/wiki/deleterious_mutations).
The time it takes cancer to develop in humans should give an idea of how long it can sometimes take for DNA changes to account for a noticeable change (humans not exposing themselves to above average levels of mutagens).
I discovered this morning how fast the DNA changes...3,000,000 times per a second!!! I finally know know how fast the DNA is mutating at a minimum. I say minimum, because between each change the amount of change may vary, one bit of change might be very little compared to the next. If my math is correct this means there are 259,200,000,000 DNA changes in a single day.
The changes that you previously mentioned are mostly not lasting changes. Physical perturbations will come and go. It might make a very short term change in DNA, but for the most part it will not alter the function in systems.
So those things are not real changes.
I will quote the book a little on this:
"Shang (1989) compared acupuncture points with developmental organizing centers and singular points. A singular point is a place where a very small change in one parameter will cause a huge change in another. In the past, such phase transitions in living systems were examined by a combination of thermodynamic, general systems, and information theories, but these approaches proved inadequate. One reason is that biological systems frequently show phase transitions that achieve something that many scientist have been reluctant to accept. Living systems simply do not obey the second law of thermodynamics. They are syntropic (Szent-Gyorgyi 1974) rather than entropic, and they have the tendency to perfect themselves. They might even be called purposeful (Haken 1973).
The second law of thermodynamics is, and always will be obeyed. Anyone telling you differently should be avoided.