But the additional stress they experience by being caught can be, and often is, lethal.
"It adds massive additional stress to their systems," he said.
This meant that use of arms and legs together produced no additional cardiovascular stress.
I'm surprised to discover I don't feel any additional stress or particularly deprived.
Someone else wondered whether there had been additional stress on the patient because the doctor was a woman.
Being on the road is already stressful for an athlete, and these are just additional stresses.
However, he may have created additional stress for people with lupus.
They just cause additional stress for pupils, teachers and parents.
In addition, the 20-40 hours per week intensity of the program, often conducted at home, may place additional stress on already challenged families.
You don't want to risk the additional stress of having a serious relationship end- it might send even the strongest person back to the bottle.