hormones in the human body and how they work?
Since this is not my area of expertise, I searched Google under the key words "human hormones" to get these possible sources:
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/H/Hormones.html
http://www.earthtym.net/50-ref-hormones-human.htm
http://en.wikipedia.org/wiki/Hormone
(Broken Link Removed)
http://www.medicinenet.com/script/main/art.asp?articlekey=184
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.