12 minYou Don't Get Sick From the Stress. You Get Sick When It Ends.
Cortisol suppresses your immune system during stress to keep you functional. When it drops, the rebound hits. That's why you always get sick the moment you finally relax.
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Deep dives into physiology, biomarkers, hormonal health, and the science of knowing your body better.
12 minCortisol suppresses your immune system during stress to keep you functional. When it drops, the rebound hits. That's why you always get sick the moment you finally relax.
13 minPCOS was officially renamed PMOS in The Lancet on May 12, 2026. Here's what the new name actually reveals about the hormonal mechanism that was misunderstood for 91 years.
13 minMuscle memory is real — but not for the reasons you think. The 2024 science of myonuclei and epigenetic DNA changes explains why your muscles never actually start over.