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"Sitting is undeniably one of the comfiest ways to arrange your body. Almost as good as lounging, really, and just short of "dangling worry-free from hammock." But it has acquired a very bad rap over the past few years. A bad rap it doesn't quite deserve. Studies say sitting will kill us in all sorts of ways. It will kill us by heart attacks, kidney diseases, chronic diseases, and colorectal cancer. If it doesn't outright murder us, it will shorten our life expectancy and give us mental health issues. Sitting has been compared to smoking. It is the reason I panic-purchased an exercise ball chair from the internet. It is the reason fancier people buy stand-up desks and treadmill desks and have jogging meetings. New research from the Mayo Clinic Proceedings joins the pile-on. As Outside pointed out, the Mayo researchers found that every hour you sit reduces the gains of your daily workout by eight percent. Are those of us who spend our days in offices, homes, or cafes huddled in front of our computers, taking notes in lecture halls, or otherwise engaged in activities that generally require butt-to-chair contact really so screwed? "

"Five or more hours of sedentary sitting, according to Dr. David Agus, is the health equivalent of smoking a pack and a quarter of cigarettes. Yikes. Yet, sitting around is something we get plenty of practice at. Reading and writing and creating on a computer makes for big chunks of sedentary time. If you're reading this post right now, are you sitting down? How long have you been sitting?"

"A large review recently published in The Journal of the National Cancer Institute confirms what we've been hearing for years: Sitting can be fatal. + It's been linked to cancer, diabetes, and cardiovascular disease. In this latest meta-analysis, Daniela Schmid and Michael F. Leitzmann of the University of Regensburg in Germany analyzed 43 observational studies, amounting to more than 4 million people's answers to questions about their sitting behavior and cancer incidences. The researchers examined close to 70,000 cancer cases and found that sitting is associated with a 24% increased risk of colon cancer, a 32% increased risk of endometrial cancer, and a 21% increased risk of lung cancer. + The really bad news: You can't exercise away the habit's harmful effects. "Adjustment for physical activity did not affect the positive association between sedentary behavior and cancer," the authors write. Even participants who achieved the daily recommended levels of physical activity were at the same risk as those who spent their day sitting. "[The results] indicate that the increased risk of cancer seen in individuals with prolonged time spent sedentary is not explained by the mere absence of physical activity in those persons," the researchers say. + S"

"Elementary school has always looked a little bit like training for a traditional office job: You show up at 8 or 9, sit at your desk, and fill out paperwork for most of the day. An average third grader might spend as much as six hours sitting in the classroom--only a little less time than the average office worker spends sitting at work. But as more offices realize that sitting all day long is actually pretty terrible for health and productivity, how long will it take schools to catch up? While some elementary schools no longer have recess, and people like New Jersey Governor Chris Christie argue that school days should be even longer, a few schools are already moving in a different direction. Some are testing out standing desks, and realizing that a little bit of activity can actually improve attention spans. Others, like Ward Elementary in Winston-Salem, North Carolina, are starting to fill classrooms with exercise bikes, so students can work out while they learn."

"t's been my dream to make my 2nd grade classroom look more like a "Starbucks for kids", and less like, well, a classroom. Think about when you go to Starbucks to complete some work. Why do you choose to work there? Where do you choose to sit? I usually gravitate towards the comfy seating choices like the couches and big chairs, and yet, I see people choose the tables and chairs over and over again. Regardless, when you walk into Starbucks, you have choice. You get to choose where you sit. No one checks you in and directs you to a spot, telling you that you must sit there for the remainder of the day to do your work. If you need to get up, walk around, or choose a different seat, you are free to do so. As I sat in our local Starbucks this past summer, I looked around and thought-why can't my classroom look like this? After several weeks of planning and a little bit of faith, what resulted was this"

"As the end of the school year draws to a close, administrators start pulling together their PD plans for the summer in preparation for the next year. Meanwhile, teachers sit anxiously by with the dread that can only come with the anticipation of the dreaded PD days that their contract says they must attend. It's not that teachers don't want to grow and improve their craft. They do, and they find it refreshingly professionalizing when they get to. It's just that this ain't their first rodeo. They've been made to sit through pointless professional development in the past and they lament that they're thinking "how long will this last and what will I have to turn in…and when is lunch?" as they trudge toward the library down the hallway that so obviously lacks the normal student energy they've used as fuel for the past 9 months. But it doesn't have to be like that. In fact, if we do things well, teachers are likely to come away from their professional development energized and excited."

"If you don't have the luxury of a 1:1 classroom or even a 10:1 classroom then you might want to sit down. I have some seriously shocking news that you might not be adequately ready to hear. Ready? Sitting? Here goes: you only need one iPad to have an effective connected classroom. Wait, that wasn't even the big one. Here it is: You only need four apps to run a one iPad classroom. Boom!"

""I'm going to practice radical empathy now," proclaimed Toshi, a 40-something male executive, to a small group at workshop offered by frog in partnership with Fast Company at SXSW this week.  "Hi, my name is Maddison and I'm a teenage girl," he says. From there he describes an experience of belonging that Maddison (a young professional woman sitting across from him) had felt at summer camp. The most compelling part of his narrative was not that he was retelling the story from her perspective, but the fact that she was sitting facing him, their knees touching while she smiled and nodded. Once he was done, it was her turn to do the same for him as a way to introduce each other to the others in the group. Maddison and Toshi had never met before this morning, but their connection even during those few minutes was undeniable. Ditto for the other two people in the group."

"Whether we're talking about preschool, elementary through secondary school, college, or even adult learners, I have serious objections to the idea that learning supposedly only comes via the eyes, the ears, and the seat of the pants. Schools -- and policymakers -- have for too long accepted the belief that learning best occurs while students are seated (and quiet, of course). The theory may have been understandable back when they didn't have the research to prove otherwise. But today we do."

"In the 2008 animated film WALL-E, Pixar depicted a light-hearted but dystopian world of obese, immobile people whose needs are met by a bustling horde of robots and computers -- a world that hardly seems like science fiction as we witness the precipitous decline in physical activity over the last generation. The Centers for Disease Control and Prevention estimates that approximately 80 percent of Americans don't get the recommended amount of exercise they need each week for optimal health. So, did Pixar predict the future of humanity or is there a way for us to course correct? Sedentary behavior is an intractable issue. Seemingly benign forces make it easier and easier for many of us to conduct our work, school and social lives from the comfort of a chair and an internet-connected gadget. Unfortunately, sedentary lifestyles are a driving force behind burgeoning health care costs, and they pose an alarming threat to the health and well-being of our children. Fortunately, there is cause for hope in lessons from the tobacco control movement and efforts to change smoking behavior. "