The surprise visit came at a time when the United States and other countries have been putting more pressure on North Korea.

VOA: special.2009.08.08

The study also found that women who were not optimistic were more likely to smoke and have high blood pressure or diabetes.

VOA: special.2009.04.15

However,scientists say a slow earthquake could be helping to release pressure, and possibly preventing more powerful quakes.

VOA: special.2009.07.07

The South,however, felt the pressure more severely, because it was weaker in troop strength and industrial strength.

VOA: special.2009.10.22

The Obama administration is clearly under pressure to do more to help contain the damage, and prevent another such disaster in the future.

VOA: standard.2010.05.18

"And we think the issue for black women is they are more likely to be obese and have chronic illnesses, like high blood pressure, which put you at higher risk for complications during pregnancy."

VOA: standard.2010.06.23

Saying President Obama has offered Iran every opportunity for constructive diplomatic dialogue on its nuclear program, Senate Democratic Foreign Relations Committee chairman John Kerry said more robust sanctions are in his words the only way to dramatically increase the economic and diplomatic pressure on Iran from the outside and help leverage pressure on the regime from its own population which wants a different relationship with the world.

VOA: standard.2009.09.25