Arianna Huffington is the creator of the Huffington Post. She is a successful business woman by all measures except for one. At the peak of her “success” she collapsed and split her head open, which she says was a major wake up call. Her long work hours and lack of sleep were taking a toll on her health.

Arianna now spends her time speaking to business leaders and executives about the health dangers of sleep deprivation and the possibility of burning oneself out. She is passionate that the key to real success is achieving some balance in your work life.

This is a real wake up call for executives, business owners and managers. Maybe it’s time to re-define what it means to be successful. What do you think is the true meaning of success?