Too much cortisol and adrenalin can result in physical problems and changes that lead to stress-related sickness.

VOA: special.2009.03.24

Here in Can Tho,in southern Vietnam, boats carrying goods converge on the Mekong River to trade.

VOA: standard.2009.12.21

The decrease in the amount of dopamine can result in one or more of the general signs of Parkinson's.

VOA: special.2009.02.03

Today we tell about an artist in Washington whose work can be found on the sides of several city buildings.

VOA: special.2010.03.19

A boy can be in hot water with his mother, if he comes into the house with dirty,wet shoes.

VOA: special.2009.05.10

By using video technology, educators and performers at the center in Atlanta,Georgia can connect with classrooms around the country.

VOA: special.2009.09.23

And when the system fails, it is my responsibility." President Obama campaigned on a promise of "change we can believe in."

VOA: special.2010.01.23

Using nets that let smaller fish escape and agreeing not to fish in certain areas can help reduce overfishing.

VOA: special.2009.08.11

Also,the root can stay in the ground for as long as three years, so it can be harvested as needed.

VOA: special.2010.06.08

But visitors to Guadalupe Mountains National Park in West Texas can still get a sense of their historic importance.

VOA: special.2010.04.26

It is so crowded that we are packed like sardines - just like small fish in a can.

VOA: special.2011.02.27

The Obama administration says the earlier those in trouble can get help, the more chance for long-term success.

VOA: special.2009.02.20

The decrease in the amount of dopamine can result in one or more general signs of Parkinson's disease.

VOA: special.2009.04.07

The mutations in these genes can increase the risk for other kinds of cancer, including cancer of the cervix, uterus and pancreas.

VOA: special.2010.09.22