Did you know that there is a reason hospitals are so cold? The hospitals are required to keep the cooling set very low for safety concerns. The main reason is the spread of bacteria and germs. Mold loves warm, wet places. With the AC on, that is no longer a problem. A cooling system naturally dries out the air and also keeps it colder. Mold, mildew and fungi have a harder time forming and breeding in very cold conditions. Also, the cooling system circulates the air around a space. The smells, dust and hair that is in the air quality is being moved all around. It is better for a patient to breathe in. Hospitals do go one step further and have ultraviolet lights installed in the AC equipment. As the air is cycling around, the UV lights are purifying it. The air is always fresh and clean for a person to breathe in. Another reason for the heavy cooling is sweat prevention. Not only would it be gross for a doctor to work around sweat, but not as safe. The sweat could contaminate a room or make an operating process messy. The cooling system has the patient break out in goosebumps rather than drip. Also, the AC is for the doctor too. The kicker is that hospital operating tools emit heat. So the AC has to counteract the tools, movement and stressful situation by adding a bunch of cold air in the space. So while no one likes freezing to death on a check up, there is a good reason for it.