Liberty Mutual: 'overexertion' the costliest US workplace injury

The cost to US employers of serious but non-fatal workplace
injuries fell by 3.2 percent year-on-year to $59.87bn in 2014,
Liberty Mutual reported in its 2017 Workplace Safety Index.
The leading causes of injuries that resulted in the loss of at
least six work days were overexertion, which accounted for $13.79bn
or 23 percent of the total; falls on the same level, which
comprised $10.62bn or 17.7 percent; and falls to a lower level,
which made up $5.50bn, or 9.2...