The CEOs of Apple, Airbnb, and PepsiCo agree on one thing: life as a business leader is incredibly lonely

Being CEO has its many perks: Business leaders get to command the world’s most powerful companies, shape their legacies as pioneers of industry, and enjoy hefty billion-dollar paychecks. But in the steep climb up the corporate ladder, many won’t notice all the peers left behind until they’re looking down from the very top. It can be a lonely, solitary job.

Leaders at some of the world’s largest companies—from Airbnb and UPS to PepsiCo and Apple—are finally opening up about the mental toll that comes with the job.