The USA is the ONLY country in the world that uses Fahrenheit, along with inches, feet, yards, and all other similar measurements that appear bizarre and unknown to the rest of the world. And, even in the USA, these measurements are NOT used in medicine. When was the last time you ever read a medical report saying a blood vessel was 1/16 inch wide? Never. They use the metric system, just like the rest of the world. In medicine, it’s mm, cm, and all the rest. By the way, 90 degrees F= 32 degrees, just so the rest of the world can understand the post.