Pain flu like illness to be "mandatory" every year. Especially when the rainy season. However, this disease mainly attacks when our immune system is weak. Therefore, you should be alert to the condition of our own bodies. How to know when our immune system starts to weaken?

* Eating too much sugar. The study, published in the American Journal of Clinical Nutrition states, 5 hours after we mengasup 100 gr sugar, the ability of white blood cells fight the germs will come down drastically. One hundred grams of sugar is equivalent to three medium-size cans of soft drinks.

* Weight gain more weight. When people attack the swine flu outbreak last year, found the fact that its sufferers have the same characteristics, ie body mass index over 40. Being overweight can cause hormone imbalances, inflammation, and impairs the ability of the body against infection.

* Nasal cavity is too dry. Stuffy nose certainly very disturbing comfort. However, if we are too dry nasal cavity, it is also not good. Therefore, mucus in the nose is there to help "trap" and clean incoming viruses. The lack of mucus in the nose, the same means give the entrance for germs to invade our body's defenses.

* Not enough to drink. There's a reason why doctors always push us much to drink when sick. The body needs plenty of water to remove toxins. The need to drink every person is different, depending on body condition and activity respectively. How to tell if we have enough to drink or not is to look at the color of urine. Urine is either clear or colored light yellow clear.

* Prolonged stress. Not a coincidence that we are so cold in the office when the work was piling up. American Psychological Association reported, long-term stress can weaken our immune response. "If we stress when it is cold, it is certain that we will experience the symptoms would be worse," said Philip Tierno.

* Often not feeling well. Typically, adults got flu about 2-3 times a year. If we experience it more than that, it can be ascertained the condition of the body is at a low level and need to be followed up with rest and eat nutritious food.