Wall Street had its worst day in more than four months today as the dollar weakened and concerns about the strength of the retail industry arose following a rare sales decline at Wal-Mart. The Dow Jones industrials fell 158 points.

Wall Street struggled to the finish today, closing out the week barely changed after a sharp dip in monthly job growth left investors confused about the US economy’s health.

STRESS is not always bad for you, a study claims.