"The 5 A.M. Club" morning routine calls for exercise in the first 20 minutes after waking up. I found this impractical because of the logistics of visiting the bathroom, pulling on workout clothes ...

Apple chief executive officer Tim Cook likes waking up before 5am, and for a spell he nailed 3.45am. He will spend an hour responding to his daily avalanche of 700 or 800 e-mails. His morning ...

In 2018, he published the book The 5am Club: Own Your Morning ... feel like it's just made me more healthy in general because I am more able to fit things like exercise in,” Huckle says.