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Source: http://news.yahoo.com/loneliness-bad-health-study-suggests-135732616.html
Loneliness Is Bad for Your Health, Study Suggests
NEW ORLEANS — Feeling lonely? New research suggests you might want to reach out. Not only is loneliness an unpleasant condition, it can harm the body's immune system.
The new study, presented Saturday (Jan. 19) here at the annual meeting of the Society for Personality and Social Psychology, reveals that people who are lonely experience more reactivation of latent viruses in their systems than the well-connected. Lonely people also are more likely than others to produce inflammatory compounds in response to stress, a factor implicated in heart disease and other chronic disorders.
"Both, in different ways, indicate that the immune system is a little out of whack," said study researcher Lisa Jaremka, a postdoctoral fellow at the Institute for Behavioral Medicine Research at Ohio State University College of Medicine.
The lonely body
Jaremka and her colleagues were interested in immune links to loneliness because feeling socially disconnected is associated with poor health and chronic disease. They recruited 200 female breast cancer survivors, average age 51, and 134 overweight, middle-age adults with no major health problems.
In the first study, the researchers analyzed the blood of the breast cancer survivors for antibodies against cytomegalovirus, a herpes virus. These common viruses can remain dormant and symptomless inside the body. Even when active, they may not cause symptoms, but they do trigger the immune system to produce antibodies, or protective proteins that help the immune system hunt down the rogue viruses. Higher antibody levels indicate higher levels of activated virus. The participants also filled out questionnaires about their loneliness and social connectedness. [7 Personality Traits That Are Bad For You]
The results revealed that the lonelier the participant, the higher the levels of cytomegalovirus antibodies in the blood.
"It's definitely indicating that the immune system is compromised in some way," Jaremka told LiveScience. "It's unable at that time, for whatever reason, in this case loneliness perhaps, to keep that virus under control."
In a second study, the researchers measured inflammatory proteins called cytokines in 144 of the breast cancer survivors as well as the healthy though overweight middle-age adults. The participants gave a blood sample and then were subjected to the stress of having to give an impromptu speech and do mental math in front of a panel of people in white lab coats. To up the anxiety, the panel gave the participants no encouragement.
"No matter what they say and no matter what jokes they crack, no matter how much they smile, the panel just stares at them, basically," Jaremka said.
The researchers also triggered the participants' immune systems with a harmless compound from bacterial cells before taking a second blood sample.
The lonelier the person, the higher the levels of cytokine interleukin-6 after the stressful speech. This cytokine is important for healing in the short term, because it promotes inflammation — think of the redness and swelling that accompanies a healing cut. However, when cytokines react too readily, inflammation can be harmful. Chronic inflammation has been linked to coronary heart disease, arthritis, Type 2 diabetes and even suicide attempts.
Loneliness and stress
Researchers have long known that chronic stress has a similar inflammation-producing, immune-disrupting effect on the body. Loneliness, in fact, may act as its own source of chronic stress, Jaremka said. Earlier research shows that close and connected relationships are necessary to help people thrive; without them, people are under a constant stressful cloud of missing this crucial social connection.
People who are lonely also tend to react more strongly to negative events in their lives, Jaremka said. If lonely people experience daily life as more stressful, it may cause chronic stress, which in turn disrupts the immune system.
Solving the problem is harder than telling lonely hearts to go out and seek more close friends, Jaremka said — it's easier said than done. But if researchers can figure out how loneliness results in poor health, they may be able to come up with treatments that disrupt the links, in essence making loneliness less of a burden, at least physically.
The study shouldn't be seen as all doom and gloom, Jaremka said. The flip side is that those who feel close to friends and family can know that their health is likely getting a boost from those relationships.
"People who feel socially connected are experiencing positive outcomes," she said.
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WARNING FROM RAEL: For those who don't use their intelligence at its full capacity, the label "selected by RAEL" on some articles does not mean that I agree with their content or support it. "Selected by RAEL" means that I believe it is important for the people of this planet to know about what people think or do, even when what they think or do is completely stupid and against our philosophy. When I selected articles in the past about stupid Christian fundamentalists in America praying for rain, I am sure no Rael-Science reader was stupid enough to believe that I was supporting praying to change the weather. So, when I select articles which are in favor of drugs, anti-semitic, anti-Jewish, racist, revisionist, or inciting hatred against any group or religion, or any other stupid article, it does not mean that I support them. It just means that it is important for all human beings to know about them. Common sense, which is usually very good among our readers, is good enough to understand that. When, like in the recent articles on drug decriminalization, it is necessary to make it clearer, I add a comment, which in this case was very clear: I support decriminalizing all drugs, as it is stupid to throw depressed and sad people (as only depressed and sad people use drugs) in prison and ruin their life with a criminal record. That does not mean that there is any change to the Message which says clearly that we must not use any drug except for medical purposes. The same applies to the freedom of expression which must be absolute. That does not mean again of course that I agree with anti-Jews, antisemites, racists of any kind or anti-Raelians. But by knowing your enemies or the enemies of your values, you are better equipped to fight them. With love and respect of course, and with the wonderful sentence of the French philosopher Voltaire in mind: "I disapprove of what you say, but I will defend to the death your right to say it".
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"Ethics" is simply a last-gasp attempt by deist conservatives and
orthodox dogmatics to keep humanity in ignorance and obscurantism,
through the well tried fermentation of fear, the fear of science and
new technologies.
There is nothing glorious about what our ancestors call history,
it is simply a succession of mistakes, intolerances and violations.
On the contrary, let us embrace Science and the new technologies
unfettered, for it is these which will liberate mankind from the
myth of god, and free us from our age old fears, from disease,
death and the sweat of labour.
Rael
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