by Adair Locke, MD. 1  Methylene blue is administered intravenously by anesthesia providers for a variety of clinical uses and may be used with increasing frequency as an intraoperative urologic marker dye due to an indefinite nationwide shortage of indigo carmine.
The Effects of Humidity on the Human Body. As discussed in Home Humidity and Allergies, humidity directly affects the amount of allergens in the indoor environment. In particular, high humidity causes both dust mite populations and mold colonies to grow, thereby greatly increasing allergy sufferers' total allergen load.
Controlling the humidity in your home is critical to staying comfortable and avoiding problems with your home. For example, too much home humidity -- which is common during summer -- can cause allergies and promote the growth of mold, which can be a health risk and cause structural damage in your home.