workaholic

A workaholic is a person who works compulsively. A workaholic experiences an inability to limit the amount of time they spend on work despite negative consequences such as damage to their relationships or health.

There is no generally accepted medical definition of this condition, although some forms of stress, impulse control disorder, obsessive-compulsive personality disorder, and obsessive-compulsive disorder can be work-related; ergomania is defined as "excessive devotion to work especially as a symptom of mental illness".