12 STRATEGIES To Strengthen Your Immune System

This article is from:   MOTHER EARTH NEWS  the original guide to living wisely
by Linda B. White, M.D.

Eating a variety of colorful vegetables is just one easy (and delicious!) way to
naturally strengthen your immune system.

  Infections are as inevitable as death and taxes. You spend your first years catching (or being caught by) colds, influenza and strep throat. You sniffle, scratch, cough, vomit, ache, sweat and shiver. Your immune system remembers the microbes it has encountered and protects you the next go around. At the other end of life, your immune system wearies from years of fighting. In that great expanse of active, productive life in between, you still get colds and flus and “stomach bugs.” You may wonder why you are sick more or less often than your partner, co-workers and neighbors. You may wonder why one person hacking on the airplane successfully sickens the passenger to his right but not the one to his left. The answer is that not all immune systems function alike. A number of factors affect immune system health. Some you can’t control: The very young and the very old are vulnerable. Surgery and wounds give microbes a chance to sneak into the inner sanctum. Other risks include chronic disease, poverty, stress, living with lots of other people (dormitories, low-income housing), and drinking tap water (with its local microbes) in many foreign countries. Fortunately, there are ways you can strengthen your immune system.

1: Eat Like Peter Rabbit.
Malnutrition impairs immune function. French fries, soft drinks and bourbon don’t build strong white blood cells either. No, it’s those virtuous, self-righteous diets high in fruits, vegetables and nuts that promote immune health, presumably because they’re rich in nutrients the immune system requires. Adequate protein intake is also important; the source can be plant or animal.

Medicinal mushrooms such as shiitake, maitake and reishi contain beta-glucans (complex carbohydrates) that enhance immune activity against infections and cancer and reduce allergies (cases of inappropriate immune system activity). While studies have focused on purified mushroom extracts, fresh shiitake and maitake (also called “hen of the woods”) mushrooms are delicious sautéed in a little olive oil.

One substance to avoid is simple sugar. Brigitte Mars, herbalist and author of The Desktop Guide to Herbal Medicines, notes that sugary foods and juices impair immune function; research bears her out.

If you’re a new mother, breast milk provides essential nutrients and immune system components to your developing child. Compared with formula-fed babies, those nourished at the breast have fewer serious infections.

2: Stress Less.
When you’re stressed, your adrenal glands churn out epinephrine (aka, adrenaline) and cortisol. While acute stress pumps up the immune system, grinding long-term duress taxes it. For instance, psychological stress raises the risk for the common cold and other viruses. Less often, chronic stress can promote a hyper-reactive immune system and aggravate conditions such as allergies, asthma and autoimmune disease.

While most of us can’t move into a spa, we can learn to save our stress responses for true emergencies and not fire them up over stalled traffic, bad hair days and aphids on the begonias. Stress-reducing activities such as meditation produce positive changes in the immune system. Massage has shown to improve immune function in studies of Dominican children with HIV. Quiet music can aid recovery from everyday hassles and may therefore buttress immune function.

3: Move Your Body.
Moderate exercise discharges tension and stress and enhances immune function. In a 2006 study, researchers took 115 obese, sedentary, postmenopausal women and assigned half of them to stretching exercises once a week and the other half to at least 45 minutes of moderate-intensity exercise five days a week. At the end of the year-long study, the stretchers had three times the rate of colds as the moderate-exercise group.

4: Sleep Soundly.
Sleep is a time when growth-promoting and reparative hormones knit up the raveled sleeve of daily life. Sleep deprivation activates the stress response, depresses immune function and elevates inflammatory chemicals (which cause you to feel ill).


Chronic sleep deprivation raises the risk of the common cold. Mothers whose small children interrupt their sleep have more respiratory infections, particularly if those wee ones go to day care. In one study, after researchers inoculated volunteers’ noses with cold viruses (a reward was involved), men and women who habitually slept less than seven hours a night were almost three times more likely to develop a cold than those who slept eight hours or more.

5: Socialize More.
People with richer social lives enjoy better health and longevity than loners do. You may think that the more people you interact with, the more chances you have for picking something up. Not so. Again, researchers blew cold viruses up people’s noses and sent them into the world. Compared with the lone wolves, the social butterflies were less susceptible to developing common colds, and, if they did get sick, they had fewer symptoms for a shorter period of time.

Many of us count furred and feathered companions as friends, and it turns out they do us a world of good. Animals such as dogs and horses get us outside exercising. Stroking an animal stirs feelings of well-being, lowers blood pressure and, according to recent research, boosts the immune system. Researchers assigned college students to pet either a stuffed dog or a live dog. Those who petted a real dog had a significant increase in levels of salivary IgG, an antibody (immune protein) that fights infection. Those who petted the stuffed dog just felt silly.

6: Make more love.
While having lots of friends is healthy, science also shows that intimate, sexual relationships have immune system perks. Michael Castleman, renowned health writer and publisher of Great Sex After 40, writes, “A 2004 study shows that the close contact of lovemaking reduces the risk of colds.” Specifically, this study found that college students who had sex once or twice a week had 30 percent more salivary IgA antibody than those who had sex infrequently.


There are 6 more to come...I will post them soon -      (hopefully) tomorrow.