It’s been proven: excessive sitting is a lethal activity. That was according to Dr. James Levine, professor of medicine at Mayo Clinic. And it’s not just him — results from various studies keep on coming and they’re all pointing to your chair/couch as the culprit for bad health. Apparently, one of the most terrible things we can do everyday is to sit still, which I imagine is what most of you are actually doing right about now.