Mutating to keep up with the times

Human Genome Shows Proof of Recent Evolution, Survey Finds

Years ago I read something in one of my biology textbooks that surprised me. It said how lactose intolerance is quite rare in Caucasian people and not in Africans, Asians, Middle Eastern people, etc... That made me rethink, on a genetic level, how we humans are not all the same on the inside. Why would I be able to digest milk products better than non-Caucasians if our only differences are on the outside? This study really gives a whole new context to our differences. We are all mutants! You think I'm kidding? I'm not. Our genes evolve to adapt to whatever circumstances we face. If we happen to rely a lot on milk products, our bodies finds ways to digest it. If we move further north and need more vitamin D, our bodies find ways to produce more of it. If we stop going out and searching for food every day and buy more processed foods instead, our bodies find ways to deal with that. It may take a millennia for our genes to catch up to our circumstances. Many people might die in the meantime if they didn't get the lucky DNA mutation. But we are evolving. We are continuing to evolve.
Imagine our future... Maybe our bodies will find ways to deal with pesticide residue on our foods? Maybe our bodies will learn to cope with the increased temperature due to global warming? Maybe we'll grow gills so we can breath underwater when the glaciers keep on melting? This list could go on and on... Maybe those who meditate will activate genes that open up beneficial pathways? Maybe we'll find a way to turn pollution into something our bodies can actually use? I think we should all embrace our mutant genes and welcome more genetic change! Not only is it a great coping mechanism, but it might be my descendants' only chance becoming real, live superheros a-la-X-Men. Isn't that what this is all about - giving our offspring the greatest chance for survival? :)