Arianna Huffington is 74 years old and she just recently started a new AI business. She started the Huffington Post at age 55 and sold it 6 years later for 315 million dollars. In this The Diary of a CEO podcast interview with Steven Bartlett she shares this gem of a story.

The moral of the story is simple: Leaders need to take care of themselves, and get enough sleep, in order to be at their best. She says, “All the science now makes it very clear that when we are depleted we are going to make bad decisions.”

Then quoting Jeff Bezos, “I sleep 8 hours a night… I’m judged by the quality of my decisions, not the quantity of my decisions.”

As the new school year begins, take this as a reminder to take care of yourself first, if you really want to take care of your staff and students. It’s not good enough to only exercise, and eat well, and get enough sleep when you are not busy. You owe it to yourself, those you serve, and your job, to treat yourself well. It’s not selfish to put on your oxygen mask first, it’s how you get enough air to take care of others.

Build good habits and take the time to care for yourself first, when you are busiest, and it will become very easy to do so all the time. You will benefit as a person, as a friend, as a partner, as a parent, as an employee, and as a leader. It starts with you taking care of you.