Workaholism in America

This infographic is way too ambiguous. Without context these bits of information are useless.

- "85.8% of males work more than 40 hours per week." – What demographic?
- "Severe workaholics can't even relax on vacation without getting sick." – What qualifies a workaholic as severe?
- "24% of workers are thinking about work when they're at home or being social." – So, basically, 3/4 of all workers never think about work when they're not actually at work?

And there's no mention of what makes a person a "workaholic". Unless I'm missing something, all of the numbers referring to "workaholics" seem arbitrary.