Yes, it's just your computer blocking the site, not Google or their subject. I would get around that by taking a trip to my local library and getting a book or looking at their magazines :-) It could be too that their computers don't block the same sites.
Maybe it won't block "school" (university) health sites? Try this one:
http://www.ualberta.ca/dept/health/w...ons/mythsf.htm