I may jinx myself with this post. But, I haven't been really sick for over a year. And I think it's because I haven't been to the hall that much,and I stopped going to Circuit Assemblies,which have always been huge germ fests.
After the Circuit Assembly this year, I heard of a lot of families,especially with small children,all having the stomach flu. This was all around the same time,some weeks after the assembly. I always seemed to come down with a cold or flu after the assemblies.
I remember someone brought their sick child to an assembly and the poor kid threw up in the auditorium during the program. Some young brothers had to clean it up.
It just seems to be another big advantage for staying home.