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Balancing Standing and Sitting Across the Workday (Podcast with Professor Travis Saunders)

Is sitting really the new smoking? This idea became popular a few years ago and research supports that, indeed, too much sitting really is bad for us. But, as I discussed with Professor Matthew Buman, while no amount of smoking is healthy, sitting is a health behavior, it just becomes problematic when we do it too much of it.

In the most recent episode of humanOS Radio, I speak with Professor Travis Saunders of The University of Prince Edwards Island. Travis is also the founder the Sedentary Behavior Research Network, which is how I learned of his work. Much of his research looks at the influence of sitting behavior on health in both children and adults. In order to move the needle on this subject, he looks at the topic from a variety of research angles ranging from interventions done in the lab to population-level epidemiological studies and systematic reviews. In our discussion, we explore what’s known and not known on the subject, and also practical ways to find the sweet spot for daily standing time.


Which Exercise Intensity Makes You Smarter Right Now? Exercise and Cognition, Part 1

It was traditionally thought that total brain blood flow was not changed during physical activity. Research in the last 10 years, however, changed this perspective. We now understand that the increased neuronal and metabolic activity of the brain during exercise drive increases in blood flow to it. We have also learned that exercise that is too intense will reduce blood flow and oxygen delivery causing fatigue. So, what is the ideal intensity to stimulate blood flow to the brain, and perhaps, augment your mental abilities in the moment?