" If you think that the body’s response to stress is always fight-or-flight, then the stress response begins to look like evolutionary baggage.
[...] A stress response that supported only two survival strategies—throw a punch or run like hell—would truly be a mismatch for modern life. But the full picture of the human stress response turns out to be much more complex. [...] As with humans themselves, the stress response has evolved, adapting over time to better fit the world we live in now. "
― Kelly McGonigal , The Upside of Stress: Why Stress Is Good for You, and How to Get Good at It