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  1. Get enough sleep and manage stress. Sleep deprivation and stress overload increase the hormone cortisol, prolonged elevation of which suppresses immune function.
  2. Eat plenty of vegetables, fruits, nuts, and seeds, which will provide your body with the nutrients your immune system needs.
  3. Consider probiotics. Studies indicate supplements reduce the incidence of respiratory and gastrointestinal infections. Fermented milk products have also been shown to reduce respiratory infections in adults and kids.
  4. Catch some rays. Sunlight triggers the skin’s production of vitamin D. In the summer, a 10-15 minute exposure (minus sunscreen) is enough. However, above 42 degrees latitude (Boston) from November through February, sunlight is too feeble and few foods contain this vitamin. Low vitamin D levels correlate with a greater risk of respiratory infection. A 2010 study in kids showed that 1200 IU a day of supplemental vitamin D reduced the risk of influenza A.
  5. Get Adjusted. Each adjustment can help to boost your immune system by 48% for up to 2 days.
  6. Go for the garlic. Garlic is a broad-spectrum antimicrobial agent and immune booster. Because heat deactivates a key active ingredient, add it to foods just before serving.
  7. Eat medicinal mushrooms, such as shiitake and maitake. A recent study showed that a concentrated extract of shiitake enhanced immune function in women with breast cancer.
  8. Try immune-supportive herbs. If you get recurrent infections, consider taking immune-supportive herbs such as eleuthero (Eleutherococcus senticocus), Asian ginseng (Panax ginseng), American ginseng (Panax quinquefolius), or astragalus (A. membranaceus).
  9. Try Essential Oils. Oregano oil can help you improve your gut health and boost your immune system. It acts kind of like a weed killer by helping to eliminate some of bad bacteria that may be dominating your digestive system. Thieves’ oil is a legendary and ancient blend of the essential oils of clove, cinnamon, lemon, rosemary and eucalyptus. Thieves’ blend has been clinically tested and proven to be more than 99% effective against airborne bacteria (study conducted at Weber State University, 1997). It has been used to treat everything from candida and bacterial infections to toxic mold to colds and flu.
  10. Drink Plenty of Water. Even overnight, during what amounts to an 8-hour fast, your immune reserves are being drained. Hydration becomes even more important when you’re sick. Fluids not only transport nutrients to the illness site, but also take toxins away for disposal. To gauge if you are getting the right amount of water, your urine should always be straw colored or darker. If it is clear, you are drinking too much water and slowing your metabolism down!
  11. Quit the Sugar. If you do only one thing to boost your immune system, eliminating sugar will do the most good. Refined sugar is a poison which, among other things, dramatically decreases immune function. Many scientists and nutritionists consider added sugar in any form to be a drug because of its negative impact on the human body. Healthier sweeteners such as honey or stevia can be used in moderation, but avoid artificial sweeteners like Splenda or Equal; they are even more toxic than cane sugar!

 

Sources:
http://www.everydayhealth.com/
http://www.smallfootprintfamily.com/