For years now, it’s been said that telomeres – the tips of your chromosomes – are the key to cancer and aging. The shorter they are, the worse off you are – so the story goes. But what do we really know about them? Can the length of your telomeres help predict how long you’ll live? Could telomere research unlock a modern fountain of youth? Could humans one day live to be hundreds of years old?
Dr. Ron Rosedale of DrRosedale.com and The Rosedale Diet is here to answer some of these questions in this special guest post. In it he will introduce you to these little bits of genetic sequences, and provide his expert commentary on the state of telomere science. It will get somewhat technical in parts, but it’s well worth the read.
Now, Dr. Rosedale…
Pretty much every feature of the human body can be found, in some form or another, on other species. Opposable thumbs? Great for building and using tools, but apes have them, too. Even the giant panda has an opposable sesamoid bone that works like a thumb. Bipedalism? Helped us avoid direct mid-afternoon sun and carry objects while moving around the environment (among other possible benefits), but plenty of other creatures walk upright, like birds and Bigfoot. The human foot? Okay, our feet are quite unique, but every other -ped has feet (just different types), and they all work well for getting around. So, what is it that makes us so different from other animals (because it’s got to be something)?
You’re going through some difficult times, no doubt. I’ve been in your shoes before. I’ve been a kid dealing with basically all the same stuff you have to contend with. I’ve been there.
Your hormones are probably (depending on age, gender, and exposure to attractive members of opposite/same sex) either raging, simmering, fomenting, budding, and/or swelling.
Your legs and arms may be growing at disproportionate rates, leaving you feeling like a stranger in your own body.
We in the Primal community talk a lot about the modern medical situation – the growing prevalence of lifestyle disease and the misguided, costly paths conventional health wisdom too often prescribes. Still, some conditions seem less – well, conditional – than others. Take eyesight, for example. If we wear glasses or contacts, we look to our families or age. While genetics and years certainly have their influence, is that the entire story for everyone? Is vision a wholly “closed” process – set in motion and then untouched by overall health and physiologic interaction, or is it more dynamic and systemic than that?
I get a fair number of emails from folks who wonder about their eye health in a Primal context. A while back I looked at the potential role of sunlight in preventing myopia, but that was just the tip of the iceberg. The post got people thinking. What are the other factors and theories behind the myopia surge? And as for readers’ individual circumstances, were they really destined to wear glasses? Is there anything they can do once they’re already living with a vision prescription? Glasses or no, what can we do to support the well-being of our eyes throughout our lifetimes?
Height has historically been regarded as a marker of health and robustness. We seem to implicitly accept that bigger is indeed better, even if we don’t want to admit it. On average, tall people attain more professional success and make more money, the taller presidential candidate almost always wins, and women are more attracted to tall men. On a very visceral level, the taller person is more physically imposing. After all, who would you rather fight – the dude with a long reach raining punches from up high or the shorter guy with stubby arms who has to work his way inside your guard (although Mike Tyson did pretty well for himself with such “limitations”)? And on that note, who would you prefer as a mate – the physically imposing specimen or the shorter, presumably weaker male?
We in the Primal health community are quick to point out that agriculture reduced physical stature. Generally speaking, bone records indicate that Paleolithic (and, to a lesser extent, Mesolithic) humans were taller than humans living immediately after the advent of agriculture. Multiple sources exist, so let’s take a look at a couple of them before moving on:
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