How Are Our Longer Life Spans Changing How We Live?

If you're between the ages of 65 and 80, congratulations! You're in a new stage of adulthood.

Among previous generations, this was the time to prepare for death. But now, traditional milestones are delayed across generations: from snake people putting off marriage to seniors putting off retirement.

This new period of adulthood is the subject of the new book, "The Age of Longevity: Re-Imagining Tomorrow for Our New Long Lives."

Rosalind Barnett, senior scientist at Brandeis University's Women's Studies Research Center. She's co-author of "The Age of Longevity: Re-Imagining Tomorrow for Our New Long Lives."

Caryl Rivers, professor of journalism at Boston University's College of Communication.