Overworking can be contagious. Here are 3 tips for keeping up with a workaholic colleague without burning out, according to a careers expert.

• Overworking is contagious, according to Melody Wilding, an executive coach and author.
• Having a workaholic as a colleague can make employees feel like it is impossible to keep up.
• Here are three tips for working with a workaholic colleague without becoming one yourself.

Workaholics have the uncanny ability to seem as if they are always on.

Whether they are responding to messages in seconds, tearing through to-do lists, or working from their vacations, the workaholic is the colleague who just never seems to rest. Working with someone like this can make people around them feel like it's impossible to keep up.