A good sexual relationship may provide even more immune system benefits. A study of college students found those who had sex once or twice a week had higher levels of an immune system protein called immunoglobulin A (IgA) than those who had less sex. Sex may also help immunity by reducing stress and improving sleep.“I tell people to get good love in their lives — good support, good friendships, however they need to get that love,” says Berliner. Good relationships, along with a healthy diet, regular exercise, and adequate sleep, are part of a holistic approach to boosting the immune system and protecting yourself from disease. “And to treat any problem holistically, there is no one-pill approach,” Berliner says.

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