5 Flu Fixes: Sex, Gentle Blowing, Massages and More

PHOTO: Cold and flu season is upon us.

With seasonal flu season upon us, the gold standards of flu-prevention such as vigilant hand washing and flu vaccination become increasingly important.

In addition to these tried and true techniques, however, research suggests a number of complementary therapies that can help prevent and overcome the cold and flu blues.

From listening to good music to beefing up your sex life, there are a number of unexpected ways to boost your immune system and help ward off illness this winter.

Gentle Blowing Is the Way to Go

A natural reaction to nasal congestion can be to want to "clear it out" with nose-blowing, but hard blowing can only make symptoms worse by pushing virus-laden mucus further into your sinuses, according to doctors.

To test this notion, researchers at the University of Virginia conducted CT scans and other measurements while subjects blew their noses, sneezed and coughed. Coughing and sneezing didn't have much of an effect on nasal cavities, but nose blowing built up enormous pressure, propelling mucus deeper into the sinuses.

"Not blowing your nose hard is good advice," said Dr. Bill Schaffner, chairman of Preventive Medicine at Vanderbilt University. "Pushing the mucus back into the sinuses will lead to more prolonged symptoms. Gentle blowing of the nose, just clearing the front of the nose, seems to work better. If you do it in the shower or under moist, humid conditions when the sinuses are already loosened, even better."

Using nasal decongestants to help drain mucus or rinsing the nasal passages with salt water are other options.

Ramp Up the Relaxing Tunes

Listening to relaxing music seems like no-brainer stress-buster, but research shows that 30 minutes of listening to soothing "environmental music" actually boosts the immune system's production of illness-fighting proteins, immunoglobulin A (IgA). IgA acts as an antibody, binding to pathogens when they first enter the body and calling forth the immune system cells needed to destroy them.

In a study from Wilkes University, salivary levels of IgA were significantly higher for test subjects who listened to this type of music when compared to those who listened to the radio or sat in silence for 30 minutes. What is environmental music? It's often playing in spas and usually intermixes relaxing instrumental music with sounds of nature.

Authors cite the ability of music to alter mood and emotional states as a possible explanation for this benefit. A 2003 review of several studies testing this benefit concluded that in general, music listening has a positive impact on IgA and mood.

Singing along might also confer a benefit to the immune system: A 2004 study in the Journal of Behavioral Medicine found that singing in a choir boosted IgA levels in the hour after singing.

Vitamin D: Good for More Than Bone Health

Though vitamin C has notoriously been the go-to vitamin when a cold is coming on, the evidence supporting the supplementation of vitamin C for colds and flu is inconclusive. Surprisingly, vitamin D, usually known for bolstering bone health and preventing rickets in children, has been shown to reduce the risk of catching colds during flu season.

A 2009 study published in Archives of Internal Medicine found that those with low vitamin D levels were 40 percent more likely to report respiratory infections. In those with asthma, low vitamin D levels increased likelihood of respiratory infection five-fold.

"There's several randomized controlled trials demonstrating that vitamin D supplementation, especially in children, reduces the risk of influenza," says Dr. Greg Plotnikoff, medical director of the Institute for Health and Healing at Abbott Northwestern Hospital in Minneapolis.

And vitamin D deficiency can be more prevalent than expected. In his study of 10,000 employees in the Atlanta Health Care system in Minneapolis, Plotnikoff found that 63 percent had low levels of vitamin D in their blood. Supplementing with 2000 IU of vitamin D a day would have been enough to bring 99 percent of those employees up to proper vitamin D levels.

Plotnikoff also notes that the 400 IUs that current serves as the recommended guideline for daily vitamin D consumption is an outdated, one-size-fits-all recommendation established in the 1940s by a study on children. In his expert opinion, 2000 IU a day during flu season would be the best way to reduce risk of cold and flu.

Frequent Romps and a Good Rub Down Rev Immunity

Another well-known stress buster, sex has also been shown to have immune-boosting effects when had regularly. A study done at Wilkes University found that those who had sex one to two times a week had elevated levels of IgA, while those who abstained or those who had sex more frequently had significantly lower concentrations of the protein in their system.

Researchers were puzzled by the fact that having sex three or more times a week did not have the same positive effect on the immune system, but thought the evidence supported moderately frequent sexual activity as a way to boost levels of IgA by as much as 30 percent.

Non-sexual touch also confers healthful benefits for a dampened immune system. Though getting a massage is often thought of as a good treatment for sore muscles or a bad back, researcher from the University of Miami School of Medicine finds that regular massage treatments boost immunity as well.

Massage increases the activity level and number of the body's natural "killer cells," which fight off pathogens, and decreases the amount of cortisol (the stress hormone) in the blood.

The Gold Standard -- Don't Leave Hand Washing Behind

While some of the above tips may be particularly fun ways to ward off illness this flu season, doctors emphasize that these methods should only complement the standard flu-fighting efforts of vaccination, hand washing and dodging contamination.

"When it comes to preventing colds and boosting the immune system, it is really important to know what is proven to be effective, what has no proof but isn't dangerous and what has no proof and might be even harmful," says Dr. Richard Besser, ABC News Chief Health and Medical editor. "Colds are caused by viruses and most are spread by contaminated hands. So ... hand wash, hand wash, hand wash."

As for complementary methods, "as long as you don't give up on keeping your hands clean and staying home when you are sick, go for it," he adds.

Given that seasonal flu vaccination is now recommended for everyone over the age of six months, Schaffner also urges patients to "run, don't walk to the local pharmacy for vaccination" if they haven't already.

"Real flu is just now taking off around the country," he says. "February is usually the flu's biggest month, so I would remind people that it's not too late to get vaccinated against influenza."

A version of this story previously appeared on ABCNews.com.

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