Women who said they were physically active even once a week showed less cognitive impairment as measured by a test.

VOA: special.2010.07.07

In the beginning, Special English had one fifteen-minute news show that was broadcast to Africa and Asia once a day.

VOA: special.2009.10.16

But Professor Roth says even the best political leaders cannot unite a country once a society's problems get out of control.

VOA: special.2009.12.19

Once a twice, he felt to agree need to play music that needed piano, so he made them believe one was playing.

VOA: special.2010.05.08

This spring, Everglades National Park launched a visitation program to what was once a highly restricted military base.

VOA: special.2009.06.30

He told them to call home once a week and to read at least one book a month.

VOA: special.2010.05.28

Forrester Research says four out of five online adults use social media at least once a month.

VOA: special.2009.09.14

Once a month, people come together at a restaurant in Washington to listen to several storytellers perform.

VOA: special.2009.03.27

Doctor Yusuf said the single pill, taken once a day, could reduce the average person's risk of heart disease and stroke by about half.

VOA: special.2009.04.08

About once a year, houses made from adobe should be given a layer of mud.

VOA: special.2009.01.12

Science on Tap meets once a month at a bar called the Schlafly Bottleworks.

VOA: special.2010.05.14

And,in Mali,the famous city of Timbuktu was once a cultural capital of West Africa.

VOA: special.2009.04.22

Once a suspect is removed, a new suspect is placed on the list.

VOA: special.2010.05.05

Some of them took a seventy-five milligram baby aspirin once a day.

VOA: special.2010.12.14