Donn Trenner, 91, estimates that two-thirds of his friends are dead.
"That's a hard one for me," he said. "I've lost a lot of people."
As we age, we not only lose friends, but face the daunting task of making new friends.
And it turns out that friendship plays a critical role in health and well-being, according to recent findings from the Stanford Center on Longevity Sightlines Project. Socially isolated elders face health risks comparable to those of smokers, and their mortality risk is twice that of obese individuals, according to the study.
Being disengaged from friends, family members and neighbors can make building new friendships even harder, said Laura Carstensen, director of the Stanford Center on Longevity. "If we're disengaged, it's going to be harder to make new friends," she said.
"Friendship is not to be taken for granted," said Trenner, a pianist. "You have to invest in friendship."
Even in your 90s, the notion of being a sole survivor can seem surprising.
Perhaps that's why 91-year-old Lucille Simmons of Lakeland, Fla., halts midsentence as she traces the losses of friends and family members. She has not only lost her two closest friends, but a granddaughter, a daughter and her husband of 68 years. Although her husband came from a family of 13 children, his siblings have mostly all vanished.