Fifteen years ago, seeking reconnection and to fuel our flames in the bedroom, my husband and I ditched our three kids for a weekend-long couples’ retreat called “Better Communication, Better Sex,” at the Miraval Arizona Resort Spa in Tucson, Ariz.

People used to strive simply to live as long as possible, but in recent years, that goal has taken on a new dimension: How long can you live in good health? “The focus now is on health span, not life spanlucky horse,” said Dr. Frank Lipman, a co-aut