They had proved that people could live and work in space for the time it would take to get to the moon and back.

VOA: special.2009.06.24

And,it said changing work rules could cause other kinds of mistakes.

VOA: special.2009.06.02

The scientists say if their work is confirmed, it could lead to further research on how lifestyle choices figure in the prevention and treatment of age-related decline and diseases such as Alzheimer's.

VOA: standard.2009.12.30