These organizations also aid the public welfare by working to improve peoples' health or economic condition.

VOA: special.2009.11.02

Rotational grazing can even help prevent wildfires by keeping grasslands in good condition.

VOA: special.2010.01.19

Little by little, they began to study their condition.

VOA: special.2010.06.10

The effect of a disease - or a condition like obesity - can be tallied by a measure called quality-adjusted life years lost.

VOA: standard.2010.08.10