“I have a theory that burnout is about resentment,” Yahoo President and CEO Marissa Mayer says. “And you beat it by knowing what it is you’re giving up that makes you resentful. I tell people: Find your rhythm."

Matt Cutts works in search optimization at Google, where he’s made hundreds of training videos for webmasters. Now he’s plugging a new way to achieve any goal: Try it for 30 days.

Even top dogs can benefit from a little time management. Here are three tips from EffectiveMeetings.com:

In a sample group of 65 CEOs, executives spent 18 hours of a 55-hour work­­week in meetings, plus three hours in phone calls and five hours in business meals. For this lot, working in solitary mode averaged just six hours weekly. CEOs say they wish they had more solo thinking time to ponder strategy ...

Here are some surprising ways a few of the big chiefs stay so productive: Drop what you’re doing and sleep ... Fire your assistant ... Be consistent ... Pick up a challenging habit or train for a triathlon ... Give people half the time they request ... Focus on handshakes, not contracts.