Posted by mike (the bug-hunting photog one) on January 23, 2001 at 22:46:26:
In Reply to: Re: A funny story about sharing mouthpieces posted by Eins on January 21, 2001 at 09:20:40:
actually, a few researchers harbor the idea that exposure to germs is healthy as in their opinion, the immune system may be like muscle tissue, or command of another language or diving skills; use it or lose it.