2. Wash your hands … and your keyboard.
And your phone. And doorknobs, faucets, the door to the fridge—any surface you use a lot and share with others. If the people around you are carrying the virus, they can spread it easily by touching or breathing on the stuff you use every day. And they might not even realize what they’re doing: You can start spreading the flu a full day before you even get that I’m-coming-down-with-something feeling.
3. Keep moving.
Regular exercise isn’t just great for the parts of your body you can see. It might also help keep your immune system in tip-top condition. There’s a clear connection between physical activity and immune function and researchers are trying to identify the specific effects. One early study found that women over 60 who kept active had more responsive immune reactions than their sedentary peers. Don’t let the cold weather keep you huddled on the sofa. Get your body in fighting shape—inside and out!
4. Get plenty of sleep.
If you do come into contact with the dreaded flu virus, it’s important that your body is ready to put up its dukes to fight it off. Your immune system needs all the energy it can get to successfully battle viral invaders. The hours you spend sleeping are when your body can focus on rest and replenishment. Fewer hours in bed means less energy and a weakened immune state.
5. Supplement your diet.
There are several foods you can eat or supplements you can take to give your immune system some added power.. Vitamin D3 helps your immune system. It’s hard to get enough from the winter sun, so consider taking supplements. You can also try chicken soup, large doses of vitamin C (500 mg every 4 hours), zinc lozenges, or anti-viral elderberry extract, all of which have been shown in studies to shorten the duration of colds or flus by 50 percent.
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