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.
Exercising in humid weather. Since you generate heat during exercise, humidity can affect your heart rate when you work out, even at cooler temperatures. Your body cools itself by sweatingâbut only if sweat can evaporate. In humid weather, sweat evaporates more slowly, so your body temperature continues to rise. Whatâs more, fluid loss from sweating decreases your blood volume.