(April 13, 2014 at 11:39 pm)SteelCurtain Wrote:(April 13, 2014 at 9:47 pm)Revelation777 Wrote: I appreciated your response until you had to end it with an insult. Oh well.That wasn't an insult. It was a serious question. I don't actually think you are this dense. No one is. I am asking why you are intentionally being so.
(April 13, 2014 at 9:47 pm)Revelation777 Wrote: If that be the case how come after millions of years for our dna and genes to evolve that humans still are susceptible to disease, mental illness, and mental retardation?There is nothing in the theory of evolution that would make any rational person expect that there would be no disease or mental illnesses.
For several reasons: One, we are biological organisms. So are most diseases. Those diseases evolve, too. Two, genetic mutations occur in every person. Most of those mutations will be deleterious. This is expected, even necessary for evolution to work. Third, there are environmental factors involved with many mental illnesses/retardation. A woman drinking alcohol while pregnant, premature birth, head trauma. Lastly, humans aren't as sexually selective about things like mental illness any longer. My girlfriend suffers from clinical depression. I would never even consider not having children with her for that reason. So the gene will survive in our potential children. There is not much negative selection pressure. (There still is some, but not a lot)
your answer makes sense
