A leading oncologist and bioethicist says healthy aging does not have to be complicated.
Dr. Ezekiel Emanuel, a professor at the University of Pennsylvania and a bioethicist, has distilled decades of research into six evidence-based principles in his book, "Eat Your Ice Cream: Six Simple Rules for a Long and Healthy Life." Emanuel laid out the framework in a recent appearance on the ZOE Science and Nutrition podcast, as reported by Fox News.
His first rule is the most direct. "Don't be stupid," Emanuel said on the podcast. "This is something my father used to say to his three sons very commonly when we were doing something dumb." Emanuel's brothers are former Chicago Mayor Rahm Emanuel and talent agent Ari Emanuel.
Under this principle, Emanuel classifies activities like BASE jumping, climbing Mount Everest, smoking, and vaping as examples of taking on unnecessary risk.
His remaining five principles cover areas that a large body of research has linked to longer, healthier lives. They include maintaining an active social life, staying mentally engaged through new hobbies and continued learning, limiting processed and sugary foods without becoming overly restrictive, getting moderate exercise, and prioritizing sleep.
Of all the factors Emanuel cited, social connection may carry the most weight in the research. "Our entire brain is constructed around social interactions, and it does way more for us," he said. "We know that if you're lonely, socially isolated, you dramatically increase your risks of mortality."
He pointed to a large body of research to support that claim. "More than 3 million people worldwide have been enrolled in studies about social interaction and longevity," he said. "And the socially isolated, people who have zero or one friends, don't see friends a lot. Those people are much more likely to die in the next few years."
Emanuel quantified the risk of social isolation in stark terms. Being lonely or isolated, he said, "is the equivalent of smoking 15 cigarettes a day."
Both close relationships and brief casual interactions contribute to well-being, he added. The benefit is not limited to deep friendships.
Emanuel also took aim at what he called "the wellness industrial complex," arguing that much of the current cultural obsession with health optimization is misdirected. "You should not be obsessed about wellness," he said. "You should be obsessed about living a meaningful life. That's really what's important, and wellness is only a means to an end."
He traced the origins of the wellness trend to broader social anxiety. "Wellness is a response to a topsy-turvy world, a lot of uncertainty about what the future's bringing, people feeling like their life's out of control," Emanuel said. "And, so, wellness is a response. This is something I can control — what I eat, the vaccines I get, the exercise."
The book is currently available. No publication date for a follow-up has been announced.
