[Noughmad]

Stress is more about the feeling of control rather than actual control. And you absolutely feel more in control in close combat than when you're targeted by artillery.

For a relatable example, compare driving a car to riding in a rollercoaster. Driving is more dangerous and you're not really in control of other drivers who can hit you, but you feel in control because you hold the wheel.

[larsrc]

Stress is a long-term thing. In close combat, you're not stressed, but terrified. The way you'd be in a car if you suddenly find yourself on the wrong side of the highway divide.

[t_mann]

Not sure that's a great example - roller coasters aren't thrilling because you're not in control but because you're experience crazy g-forces,... sitting on a train is pretty relaxing usually.