Your blood may barely react to mental stress — but a bungee jump lights it up
Researchers measured proteins and other molecules in people's blood after three kinds of stress. Mental stress changed the blood very little, while physical stress and especially bungee jumping caused large, lasting changes.
Why it matters
We often say stress is stress, but this early study hints the body's blood chemistry treats worry very differently from physical strain. Even when a mental stress clearly switched on the body's main stress-hormone system, the blood molecules barely moved. If this holds up, it could change how doctors think about measuring stress in the body. For now it is a small, early look, not a settled fact.
Who's behind it: T. Ebert and colleagues, Not disclosed.
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