I get a cold twice a year normally, despite the fact that I wash my hands regularly and get enough sleep and take vitamins and all that stuff. So, I'm wondering, now that I'm riding the bus, am I likely to get more colds than normal? Or, will all the other germs that I'm exposed to from riding the bus cause my immune system to strengthen so that it can fend off colds better? I've already heard several people sniffling, so I guess we'll find out soon enough.