Get Up and Move: The Perils of Sitting

When I first heard that sitting too much was associated with chronic disease, I was extremely skeptical. Of course it is, I thought... people who sit more exercise less, they lose cardiovascular fitness, and they burn fewer calories throughout the day, setting themselves up to gain weight. It's not that sitting too much directly promotes disease, I thought; it must be all that goes along with it. It's the lack of exercise and the weight gain that's the real problem.

Welp, I was wrong (1). Turns out, we now know of specific molecular processes that take place when we sit, and they're distinct from intentional exercise. In fact, even if you get the "recommended" amount exercise, 30 minutes a day, you can completely undo those metabolic benefits by spending the rest of your day sedentary in a chair. Sitting continuously sets off a series of unwanted cellular mechanisms that immediately reduce your HDL and increase your triglycerides, two common risk factors for cardiovascular disease. Over the long term, we put ourselves at high risk for chronic disease, and that includes heart disease, high blood pressure, diabetes, and obesity.

Stay Humble: We Don't Know What We Don't Know

I've used this pic before. I don't care.

I'd like to share a story with you. The other day in one of my classes, we were discussing the history of vitamin D. My professor told us a fascinating story about the early research on vitamin D and rickets, the bone disease children get as a result of a deficiency. This particular researcher, Leonard Findlay, had performed experiments with dogs, and he was convinced that rickets could be cured simply by exercising. In 1908, he published a paper detailing his experiments: "The Etiology of Rickets: A Clinical and Experimental Study".

What Findlay did, essentially, was induce rickets in dogs by keeping them sedentary. He would keep them locked up indoors in cages, providing them food of course, until they would develop symptoms of rickets. Then, as an experimental treatment, he would take some of the dogs outside and let them run around. Allowing the dogs to run around outside cured their rickets, and so Findlay assumed that exercise was the reason why.

How to Prevent Osteoporosis and Fractures

Osteoporosis.  You might be thinking, "I'm not an old lady, this doesn't concern me, I'm going to go back to watching Honey Boo Boo and snacking on mayonnaise."  Wrong.  Whether you're a man or a woman, young or old, you need to know about osteoporosis.  It may be more common in post-menopausal women, but it happens in men too, and how you live in your 20s could have a HUGE impact on whether you fall and break a hip in your 70s.  So listen up.  There's a lot of misinformation around this topic, and I don't want you popping calcium, vitamin D, and Boniva pills and thinking everything will be okay.  Ready?  Let's go.

First, some basics.

Osteoporosis:  A disease characterized by low bone mass and structural deterioration of bone tissue, leading to bone fragility and an increased susceptibility to fractures, especially of the hip, spine, and wrist.

In other words, having osteoporosis means you have weak bones that'll break on you a whole lot easier than they should.  Osteoporosis is responsible for more than 1.5 million fractures each year.  That's a lot.  What's more, up to 1/3 of hip fracture patients die within one year of their fracture, and up to 75% never walk independently again (1).  Obviously, the vast majority happen to older adults.  But it may be your bone health in your 20s that best predicts your bone health in your 70s.  Why?  Peak bone mass.

Top line = men, bottom line = women

Peak bone mass is just what it sounds like:  the point in life at which you have the thickest, densest, healthiest bones.  And that point is in your late 20s.  After that, it's very difficult/impossible to build more bone mass, and so it slowly declines into old age.  Key point... the more bone mass you can develop in your 20s, the more you'll have to work with when you're older.  It's never too early to start.  How do you do that?  You ask and I answer... 

Crossfit, Bodybuilding, and Getting Girls to Sleep With You

As many of you know, I've been crossfitting for a good while now, and I love it.  It's given me a completely new outlook on fitness; I have a much more performance-based mentality than I used to.  Whereas I used to care mostly about having nice pecs and biceps (curls for the girls), I now concern myself with more worthwhile goals, like lifting heavy shit over my head, doing lots of pullups, and training my body to move the way it's designed to move.  Sure, looking good naked is a nice side effect, but that's not why I do it.  For simplicity, here's a short summary of the differences between crossfit and what everyone else is doing...

Crossfit approach:  Performance oriented.  Get faster and stronger.  Do fundamental exercises like squats, deadlifts, and presses, which will produce strength that translates into real life activities.  Do more work in less time, use proper form, and train your body to be an athletic machine.  Build strength, power, endurance, and athleticism. 

Bodybuilding/general gym approach:  Work out to look good.  Do silly things like bicep curls and leg extensions.  Use the elliptical machine for cardio.  Work your muscles groups individually, in isolation from the body as a whole.  Whack off to yourself in the mirror.  

And now that I have this new crossfit mentality, I have to admit... I'm a little embarrassed.  I'm embarrassed because for so long, my only motive for working out was to look good; I can't believe I was ever so vain.  And this is, in my now older and wiser mind, not the way to look at fitness.  It gives me and everyone else in the performance realm a bad name... including crossfitters, power lifters, track athletes, endurance athletes, and anyone else who has real, substantial goals that aren't rooted in narcissism.  Unfortunately, most avid gym-goers are still stuck in this bodybuilding mentality, only working out for aesthetic purposes, to look good for others.  In other words, they're not doing it for themselves... they're doing it for other people.  And here's what's wrong with it.