Seven ways to kickstart your immune system

September. When the first whiff of chilly air nips your sun-pampered nose, you'll know it’s time to say goodbye to hot, sunny days. As the days get shorter and the air gets cooler, it's time to put all your light summer clothes back in the closet and start getting your immune system up to speed. The following tips and the right micronutrients will help you prepare for the cold and rainy season.