96% of those who have either come into work hungover after a holiday party   or know someone who did have also observed the following:

- 64% of people called in sick from work

- 61% of people arrived late/left early from work

- 54% of people mentally "checked-out" even though they were physically   in the office

- 46% of people had trouble completing work-related tasks

- 46% of people had been sick at work

- 43% of people put off some of their work until the following day

- 27% of people took a long lunch break