What if your aches, digestive issues, or low-energy days aren’t just about food or stress — but how well your body manages gravity? In this powerful conversation, Dr. Brennan Spiegel unpacks “gravity intolerance,” the idea that our bodies are increasingly out of sync with the gravity force we evolved under. From astronauts losing bone density in space to children collapsing into chairs, the missing piece isn’t always more activity or diet—it’s a better alignment with how nature meant us to move, stay upright, and resist the downward drag.

Dr. Spiegel weaves together stories and science: how weak posture flattens digestion, how serotonin isn’t just a mood chemical but a key tool for gravity-resilience, how weighted vests and foot contact matter, and why many gut-brain problems (including IBS) may stem from gravity mis-management more than we realized.

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