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The Company We Keep So now we have seen that our cells are in relationship with our thoughts, feelings, and each other. How do they factor into our relationships with others? Listening and communicating clearly play an important part in healthy relationships. Can relationships play an essential role in our own health? More than fifty years ago there was a seminal finding when the social and health habits of more than 4,500 men and women were followed for a period of ten years. This epidemiological study led researchers to a groundbreaking discovery: people who had few or no social contacts died earlier than those who lived richer social lives. Social connections, we learned, had a profound influence on physical health.9 Further evidence for this fascinating finding came from the town of Roseto, Pennsylvania. Epidemiologists were interested in Roseto because of its extremely low rate of coronary artery disease and death caused by heart disease compared to the rest of the United States. What were the town’s residents doing differently that protected them from the number one killer in the United States? On close examination, it seemed to defy common sense: health nuts, these townspeople were not. They didn’t get much exercise, many were overweight, they smoked, and they relished high-fat diets. They had all the risk factors for heart disease. Their health secret, effective despite questionable lifestyle choices, turned out to be strong communal, cultural, and familial ties. A few years later, as the younger generation started leaving town, they faced a rude awakening. Even when they had improved their health behaviors—stopped smoking, started exercising, changed their diets—their rate of heart disease rose dramatically. Why? Because they had lost the extraordinarily close connection they enjoyed with neighbors and family.10 From studies such as these, we learn that social isolation is almost as great a precursor of heart disease as elevated cholesterol or smoking. People connection is as important as cellular connections. Since the initial large population studies, scientists in the field of psychoneuroimmunology have demonstrated that having a support system helps in recovery from illness, prevention of viral infections, and maintaining healthier hearts.11 For example, in the 1990s researchers began laboratory studies with healthy volunteers to uncover biological links to social and psychological behavior. Infected experimentally with cold viruses, volunteers were kept in isolation and monitored for symptoms and evidence of infection. All showed immunological evidence of a viral infection, yet only some developed symptoms of a cold. Guess which ones got sick: those who reported the most stress and the fewest social interactions in their “real life” outside the lab setting.12 We Share the Single Cell’s Fate Community is part of our healing network, all the way down to the level of our cells. A single cell left alone in a petri dish will not survive. In fact, cells actually program themselves to die if they are isolated! Neurons in the developing brain that fail to connect to other cells also program themselves to die—more evidence of the life-saving need for connection; no cell thrives alone. What we see in the microcosm is reflected in the larger organism: just as our cells need to stay connected to stay alive, we, too, need regular contact with family, friends, and community. Personal relationships nourish our cells,
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Sondra Barrett (Secrets of Your Cells: Discovering Your Body's Inner Intelligence)