Your Stress Response Thinks You’re Being Chased
Your body can’t tell the difference between a looming deadline and a looming predator.
The stress response—cortisol flooding your bloodstream, heart racing, muscles tensing—evolved for acute physical threats. For running from danger, it’s brilliant: diverts energy from digestion and immune function to muscles and brain, sharpens focus, primes you for immediate action. Then, crucially, switches off once the threat passes.
The problem is duration. Activated by chronic stressors like work pressure or financial worry, that same response becomes destructive. Your body keeps diverting resources from repair and maintenance because it thinks survival is at stake right now. Elevated cortisol suppresses immune function, disrupts sleep, impairs memory formation, increases inflammation. A system designed to save your life for three minutes starts damaging it over three months.
The mismatch explains why stress management isn’t about eliminating the response—it’s about recognising when you’re running a sprint protocol during a marathon. Exercise, sleep, and social connection don’t just “reduce stress”—they signal to your nervous system that the threat has passed, allowing the response to complete its cycle instead of staying chronically activated.
Your body is doing exactly what it was designed to do. It just wasn’t designed for inbox zero.