"But even the old ones are showing stress," he said.

That was how Haley showed stress: she would increasingly lose her voice.

Studies with HIV have also shown stress to speed up viral progression.

And her face showed severe stress.

"I want to show confusion, chaos-I want to show stress," he said.

Often, males do not show emotional stress in attempts to be the emotional stability within the relationship.

However, if evaluated 30 minutes before competition, the trained horse would show less stress.

The home opener was 90 minutes away, but Cameron showed less stress than a bullpen catcher.

The environmental controls winked out and the impulse engine light showed extreme stress.

Above 70 degrees, the trout start to show stress.