Whether in advertisers on websites or in rumors from friends, we are often presented with unreliable health information. A commercial tells you that an expensive new vitamin will reduce your risk of cancer; your friend tells you to not drink from plastic cups. Or was that glass cups?

Health research takes place at such a rapid rate and the information is so vast, you can't expect even your physician or professor to be current about all of it. It is important to have a variety of sources, but you also have to be careful to choose reliable sources.

How to Spot Health Fraud and How To Evaluate Health Information on the Internet: Questions and Answers are good introductions on what to watch out for.

As for reliable sources? There are a few. But for basic information about a wide variety of topics you can do well to browse look up Mayo Clinic medical information and tools for healthy living - MayoClinic.com