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iVillage: 10 Tricks You Haven’t Heard to Prevent Colds & Flu

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Get It On

Research shows that couples who have sex 1-2 times per week have higher levels of immunoglobulin A (or IgA), which can protect you from getting colds and other infections, says Lombardo. Not to mention you’ll stay warm and burn a few extra calories. Plus, it’s way more fun than a flu shot!

(CREDIT: Inti St. Clair/Blend Images/Getty Images)
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