Exercise Blogs

Imagine finishing an earnest hour on the exercise bike, toweling off with the glow of someone who has paid the metabolic taxes, and then returning to a chair for the rest of the day. Surely the workout has canceled the sitting.

Edited and approved by Stephen C. Rose, PhD, MS

The metabolic loop begins with mTORC1, a nutrient-sensing growth switch, being pushed toward the on position. Insulin resistance builds; the familiar markers of metabolic syndrome begin to appear. But a long-running metabolic problem does not stay...

Rapamycin has become one of the most talked-about drugs in longevity circles. Depending on who is speaking, it is either the most promising geroprotector we have or a risky transplant drug being dragged too quickly into wellness culture. A 2026 randomized trial called RAPA-EX-01 gives the conversation something it badly needed: a real human result that was not especially flattering. In sedentary adults aged 65 to 85, weekly sirolimus, which is the medical name for rapamycin, did not improve the benefits of a 13-week exercise program. In some analyses, it may have slightly reduced gains in chair-stand performance, and the Sirolimus group had more adverse events

The switch is mTORC1 on one side, AMPK on the other, and a molecular logic that was built for a world of alternating feast and famine. In that world, the switch flipped regularly. Neither side stayed dominant for long. The modern environment broke that rhythm — and when the switch got stuck, something else happened that is more consequential than a switch simply being in the wrong position. A feedback loop formed. The stuck switch began generating the conditions that kept it stuck. And once that loop is running, the familiar tools — eating less, trying harder, starting over — can make it worse rather than better.

Part One: The Switch You have done everything right. You cut the calories, gave up the bread, the wine, the desserts that used to feel like a reasonable reward for getting through the week. For a while it worked. Then it stopped

Now, I consider myself to be a pretty health-conscious person. For the last 30+ years, part of my daily routine has been working out at the gym, picking up new things every so often. It’s important to never stop learning, mix up your workouts and keep things fresh. So, I was surprised that it wasn’t until recently that I discovered the Asian Squat. Not just because it’s an absolutely amazing activity that promotes a healthier lifestyle, which in turn may even aid in longevity (we all want to live longer, right?). But especially for the fact that it has been around for THOUSANDS of years! That’s right, in ancient times, the Asian Squat was king.