IN HIGH SCHOOL, THE MATH TEACHER, WOULD CLOSE THE DOOR AND WINDOWS AND TURN UP THERMOSTAT. WHEN IT BECAME HOTTER THAN ... HE WOULD OPEN WINDOWS, OPEN DOOR AND TURN THE HEAT OFF. THIS OF COURSE WAS IN WINTER.
SERIOUSLY. I bought a mouthgaurd thing the day after the class. I don't know what I'd do if I didn't have it. As several instructors have told me, "Those people are collapsing for a reason, if it's contagious you don't want it!". Find local on