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.
'Dumbest sport'. Heat and humidity can also affect the efficiency of sweating because the difference in temperature between the body and outside environment is reduced, making it harder for the sweat to evaporate. In this case, the body sends hot blood to the surface of the skin in a bid to cool it.