I used to be one of those people who got sick all the time.
Once I adopted these practices that stopped on a dime!
Together they're more effective than separate, but if I had to choose only one I'd pick Vitamin D.
1. Sleep! Go to bed girls! By 10:30 is best.
2. Sugar. Eating refined sugar decreases your white blood cell count by 40% for 8 hours.
3. Sweat! Exercise to stimulate your lymphatic system.
4. Supplements. My favorites for immunity include Vit D, Probiotics and Essential Fatty Acids.