Out-of-pocket expenses add further stress to patients and their families.

And they add emotional stress to a situation that is already difficult to endure.

"It adds massive additional stress to their systems," he said.

And still the visitors keep coming, nearly 300 million last year, adding further stress to the system.

Having you watching over our shoulders would add stress that, frankly, we do not need.

Time to add stress to the experimental system and observe how the subjects changed.

This first marriage was Anton's initial attempt at free love and it added too much stress.

But for the students who are unsure, the bonuses add stress to their decision making.

It is also used to add visual stress on words in the same way English might use italics.

But a much lower percentage of them are nonstop, adding hours and stress to many trips.