Even though it is not a cure, but moderate exercise may add to the 'insurance' package against colds and flu. According to research submitted at the recent American College of Spors Medicine, physically active people report fewer sick days than sedentary individuals. But there is a point of diminishing returns where heavy training may worsen your immunity to sore throat, sneezing and coughing. Presenter David C. Nieman, DPH, of Appalachian State University in Boone, North Carolina explains that several positive changes occur in the immune system during moderate exercise. Each exercise boosts the immunity through increased metabolic activity but without elevating stress hormones that may adversely disturb body's homeostasis.

• Keep life stressors to a minimum: there is a direct link between mental stress and reduced immunity
• Eat a well-balanced diet with sufficient amounts of vitamins and minerals
• Avoid fatigue and overtraining
  
• Avoid rapid weight loss
• Maintain adequate, consistent sleep patterns
• Keep your hands away from pathways of infection, such as eyes and nose
• Get a flu shot every year