A Steam Room?

Ned saw what he at first thought to be a silly news report, in that coffee and tea drinkers seemed to have fewer nasal infections and fewer colds than those who did not drink tea or coffee. It was hypothesized that the reason was the people were breathing in steam from the hot drinks, which made Ned laugh at it's simplicity and lack of logic. But then.... Ned recalled that he had been going to his gym for about 18 months. One of the features of the facility was a steam room, which Ned regularly frequents unless driven out by Vietnamese jabbering away at the top of their lungs in Vietnamese (Ned hastens to add that he would be just as upset at anyone jabbering away in such a public place, but we digress). Ned cannot recall the last time he was sick. So Ned wonders, could it be the steam? And, if so, can Ned become the Emperor of Steam?