Illness is the leading reason why Chinese families fall below the poverty line, researchers say.

Hunching over a computer is a leading reason why four in five women end up with crippling back pain at some point in their lives.

In fact, it's a leading reason for calling in sick to work or school.

Indeed, at age 27, Martin (34-2-2) has become the leading reason that women's boxing is being taken ever more seriously.

Good transportation is a leading reason for Wyoming's prosperity.

Behavior problems, she noted, are the leading reason people give their pets away.

By December, he had abandoned the project, the leading reason being the difficulty of finding a star to play the lead role.

They say mammography is a leading reason that the breast-cancer death rate has been dropping for the last decade.

Surveys show that motherhood is the leading reason girls fail to finish high school.

This is the leading reason developing countries refuse to accept or respect copyright laws.