When grandchildren become teenagers, grandparents have a tendency to disengage, no matter how close they were with their grandchildren beforehand. On today’s edition of Family Talk, Mark Gregston, author of Grandparenting Teens: Leaving a Legacy of Hope, encourages grandparents to do the opposite, saying this is the time for them to press in, not check out. Rather than being concerned about what’s coming out of their teenage grandchild’s mouth, they should be listening to his or her heart.