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Colder weather is setting in and with the change of seasons you might also notice more people coughing, sneezing and calling in sick. It's a harsh reality that these chilly months are strongly associated with the cold and flu. In fact, even the most diligent hand-washers and surface sanitizers among us could easily find themselves home sick this winter. As it turns out, your likelihood of getting sick depends more on the state of your health than on how often you pull out the hand sanitizer -- but that's not to say you shouldn't also be diligent about your environment. When it comes to preventing illness, the best strategy is a holistic effort.

If your current plan to stay healthy this winter begins and ends at drinking extra orange juice, you might want to rethink that strategy. From getting outside to eating right, there a lot of surprising things you can do to minimize chances of coming down with the cold or flu. Doctors and health experts shared lesser-known tips:

Surprising Ways To Prevent Cold And Flu

Soak Up Sun
 

Soak Up Sun

"We all think of vitamin C as the immune booster, but recent research has shown that vitamin D greatly effects the immune system," said Dr. Scott M. Schreiber, a chiropractic physician, certified nutrition specialist and Delaware’s only board certified rehabilitation specialist. "[Vitamin D] has been ...

Soak Up Sun
 

Soak Up Sun

... shown to elevate that activity of immune cells." Meanwhile, he said, a deficiency of vitamin D has been linked to the occurrence of autoimmune diseases."

Get Dirty
 

Get Dirty

"Exposing yourself to dirt (and microorganisms) can have a long-lasting impact on your immune system," Schreiber said. "As a society, we fear getting dirty, when in fact, [studies have shown] it is extremely beneficial." Believe it or ...

Get Dirty
 

Get Dirty

... not, he added, those mud runs are good for you.

Stay Hydrated
 

Stay Hydrated

"As part of overall good health habits, it's important to maintain good hydration, regardless of the season," said Medical Director at Cassena Care Dr. Joel Blass. "In colder weather, the body's metabolism revs up and you tend to exhale more moisture than ...

Stay Hydrated
 

Stay Hydrated

... usual -- it's important to replenish those fluids. In winter, losing fluids tends to dry your mucous membranes, weakening that first level of defense, which in turn makes you more susceptible to contracting cold and flu viruses."

Bundle Up
 

Bundle Up

"It is always a good idea to dress appropriately for the seasons. Fashion aside, there is a health benefit to keeping warm in cold weather," Blass said. "Cold weather stresses the immune system, and so, while the term 'catching a cold' may be a misnomer ... a weakened immune system can make you more susceptible to those viruses. Also, for ...

Bundle Up
 

Bundle Up

... some people, cooler weather means more runny noses. Wiping your nose raises your exposure to cold and flu viruses, and with that, your chances of contracting those illnesses."

Sleep Well
 

Sleep Well

"On average, most adults need seven or eight hours of sleep a night, although there's a lot of variation from individual to individual. The ideal amount of sleep is whatever leaves you feeling refreshed and ready for the day," Blass said. "Sleep and health are intertwined, affecting each other. Poor sleep leads to ...

Sleep Well
 

Sleep Well

... grogginess, depression, obesity (because of increased appetite), diabetes and heart disease… Conversely, various illnesses and conditions can interfere with sleep, such as pain, heart disease and sleep apnea. All adults should make 'sleep hygiene' every bit as much a priority as other hygienes; this includes getting to bed on time, avoiding TV and computer work at night, avoiding coffee and other caffeinated beverages if the individual is caffeine-sensitive."

Stress Less
 

Stress Less

"One of the things most overlooked when talking about preventing colds and flu is the effect stress has on our immune system. Though stress temporarily boosts the immune system, long-term low-grade stressors like we experience in our everyday lives deplete the ...

Stress Less
 

Stress Less

... immune system and prevents us from mounting the attack we would need to keep from getting a cold or flu," said Kathy Gruver, PhD, a health and wellness expert who specializes in stress and mind/body medicine. "Things like simple meditations or affirmations can help."

Drink Tea
 

Drink Tea

"Even if you are not a regular tea drinker, try sipping on a cup or two daily during cold and flu season," said Jenna Gagnon, the communications specialist for Aidance Skincare. "Steam from tea stimulates cilia, which are those little hairs inside your nose. Think about ...

Drink Tea
 

Drink Tea

... cilia as the air filter of nose; keep the cilia healthy and abundant to keep germs from making you sick."

Wash Your Winter Gloves
 

Wash Your Winter Gloves

"Wash your winter gloves regularly -- so many of us forget to do this,” Gagnon said. "Gloves protect our hands, but they also pick up and hold onto the cold and flu viruses and e-coli. Scarves may also ...

Wash Your Winter Gloves
 

Wash Your Winter Gloves

... arbor your bacteria. Keep yourself warm while also keeping these items clean."

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For the complete list of Surprising Ways To Prevent Cold and Flu, go to TheActiveTimes.com.

More From The Active Times:
-- Foods that Boost Your Immune System
-- Experts Share Easy Ways to Boost Your Immune System
-- Ways Exercise Can Improve Your Mental Health
-- Expert Tips for Beating the Winter Blues

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