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Why can having friends strengthen your immune system?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
It doesn't matter what kind of fight you're in-a bar fight, a fight with the mechanic, a family food fight-you always want someone else on your side. Simple math shows that the more people who are on your side, the better your chances. The same goes for your health: creating a strong social network is paramount in raising the level of your immune system. How?

Depression has been linked to infection, presumably because depression inhibits the fighting ability of your immune system's T-cells. It's not just forgetting to activate your burglar alarm; it's not caring whether it's activated or not. Group participation works, too-religious groups, social groups, and work groups are all beneficial.
YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger

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YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger

Between your full-length mirror and high-school biology class, you probably think you know a lot about the human body. While it's true that we live in an age when we're as obsessed with our bodies as...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.