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Diet makes a difference. Your diet has a direct impact on your immune
system. In fact, deficiencies of certain nutrients can weaken your ability to fight off disease. To keep your immune system strong, make sure you get plenty of protein, vitamins A, C, and E, omega 3 fatty acids, zinc, selenium, calcium, iron, and antioxidants, including carotenoids like lycopene and beta carotene. These are the building blocks of a strong defense system. 
Your best bet is to get these nutrients from foods, not supplements. Talk to your doctor before taking any supplements. If you choose to take them, make sure you buy them from a reputable source. Beware of fad diets that claim to boost your immune system. They usually involve “cleansing” rituals along with megadoses of vitamins, minerals, and amino acids, which can be unhealthy. Remember, a well balanced diet will help you build a strong immune system.
Help your body help you. A car needs more than just fuel to run smoothly, it also needs some preventive maintenance. Same with your immune system. Besides eating the right foods, you should also take care of your body in other ways. Exercise. Regular, gentle exercise, like walking, helps fortify your immune system by stimulating natural killer cells that stop viruses and bacteria. Exercise is especially helpful for seniors. Women over 67 who walk or exercise regularly reportedly have fewer respiratory infections than others. Get enough sleep. Your body needs rest to stay in tip top shape. When it’s working to fight off a cold or the flu, sometimes rest is the best medicine. Relax. Find ways to reduce stress, which can weaken your immune system. Listen to music, do yoga or tai chi, go for a walk, practice deep breathing exercises or other relaxation techniques, or just talk to someone about your problems. Wash your hands. It’s an easy and effective way to fight germs. When Naval recruits lathered up five times a day, they watched their rate of respiratory illness drop by 45 percent. Wash vigorously with regular soap and water for 15 to 20 seconds. When you eat right and take care of your body, your immune system will take care of you.
Until tomorrow: 
If you live long enough, you’ll make mistakes. But if you learn from them, you’ll be a better person. It’s how you handle adversity, not how it affects you. 
The main thing is never quit, never quit, never quit.

Por: Dorothy Prats / [email protected]