Stress results when something causes your body to act as if it were being attacked.

VOA: special.2009.03.24

Many migraine sufferers say hot weather and low barometric pressure can act as triggers.

VOA: special.2009.03.18

The ten were only charged with plotting to act as undeclared foreign agents.

VOA: special.2010.07.10

And they act as a windbreak, so they reduce heating costs in winter.

VOA: special.2009.09.08

Dense planting of a crop can also act as a natural control.

VOA: special.2009.05.26

Insects and other organisms can also act as biological controls.

VOA: special.2010.08.10

Under his theory, businesses act as structures for conflict resolution.

VOA: special.2009.10.16

Men did not see his act as foolish or overly-dramatic.

VOA: special.2010.09.16

They act as if they are giving us charity,she says. So really it is not easy.

VOA: standard.2009.08.27

"You are provoking the gods and you act as if there will be no consequence."

VOA: standard.2010.04.08

"We are welcome anyone from the international community the U.N.,the EU,the U.S., and even the ASEAN we are welcome to act as a facilitator between the opposition and the military junta,".

VOA: standard.2009.09.24

Professor Fouad Ajami, who directs the Middle East Studies program at the Johns Hopkins School of Advanced International Studies, thinks President Assad is well placed to act as mediator with Iran.

VOA: standard.2009.03.18

which is featured on his new album Nobody Left to Crown,Meanwhile, in a role he seems to relish, Havens will continue to act as a benign, bearded ambassador for the Woodstock state of mind.

VOA: standard.2009.08.15

So,I said to myself, it would be a simple, harmless act to help him as much as I could.

VOA: special.2010.03.27