Imagine being at the top of your game, and out of nowhere... boom! It hits you. Something happens to change your whole world.

Imagine being Charlie Bell (search).

Charlie who, you ask? Charlie, the now outgoing CEO of McDonalds, Bell. That's who.

Charlie did nothing wrong. He just has something wrong, very wrong, with his body: colorectal cancer (search). And now he's in the battle of his young 44-year-old life.

He wants to devote all his time to this personal battle and is passing up the corporate one he no doubt aspired to all his life.

Suddenly priorities matter for Charlie and no doubt his board — concerned he had missed some crucial meetings at a crucial time for a company going through crucial changes.

Life has a habit of throwing curve balls at you.

Bell himself was a fast replacement for Jim Cantalupo (search), who died of a heart attack last April, only hours before he was to address a convention of McDonald's franchisees.

For Charlie the sky was the limit, but his body had bigger limits. Somehow I don't think Charlie's much concerned with resurrecting his corporate life. I bet you he's more concerned with resurrecting his health. Being sick — really sick — does that to you. It forces you to prioritize: Giving up the things you once thought mattered and focusing on things that aren't things at all. Things like breathing and family, mot money and titles.

Leave it to a man steeped in fast food to give us all far more lasting... food for thought.

Get well Charlie, and soon.

Watch Neil Cavuto weekdays at 4 p.m. ET on "Your World with Cavuto" and send your comments to cavuto@foxnews.com

Neil Cavuto serves as senior vice president, anchor and managing editor for both FOX News Channel (FNC) and FOX Business Network (FBN). He is anchor of FNC's Your World with Cavuto - the number one rated cable news program for the 4 p.m. timeslot - as well as the FNC Saturday show Cavuto on Business. He also hosts Cavuto on FBN weeknights at 8 p.m. In addition to anchoring daily programs and breaking news specials on FNC and FBN, Cavuto oversees business news content for both networks and FNC's weekend business shows, including Bulls & Bears, Forbes on Fox, and Cashin' In. Click here for more on Neil Cavuto.