Hi, I have been air drying my hair ever since I started wearing my hair naturally curly, and I notice huge difference any plenty of growth and thickness. But the problem is I seem to be catching more colds more often. I do not go outside when my hair is wet, and i stupid one time to sleep with mininal damp hair which i never do anymore. My hair takes a whole day to dry because i am wearing in protective styles like buns. The problem is living in Michigan where is freezing most of the year. But, in the summer, there is no problem because it is warm and I wear my hair down more often, and my hair can be dry as quickly as 30 min. I already have serious sinus problems, so i am easily am set up to catch colds. I do not know what to do because i do not want to blow dry my hair. i have only blow dried my hair twice this year, and i want to keep it to a miminum. But I am tired of worrying about if I going to get sick. Any suggestions, Please help. Thanks again ladies. Sorry if this is too long.