When people think about wealth, they usually picture savings accounts, retirement funds, or rising home values. But a growing group of researchers and economists says one of the world’s most valuable assets sits inside our skulls. The conversation around brain health is shifting from a medical issue to an economic one, with experts linking stronger cognitive function and healthier brains to trillions in potential global value. Some analyses tied to workplace wellness, mental health, and neurological resilience suggest improving brain outcomes could unlock as much as $26 trillion in economic opportunity worldwide.