additional funding provided by: genzyme, a sanofi company.nd by sonosite. >> mcfarland: testosterone is referred to as the sex hormone of the male body and is produced in the endocrine system, which is the system of hormone-producing glands and organs. hormones have a fascinating mission in the body. they act as message carriers from one organ to another. because of this, they help control the operation of many important functions of the body. the human body is a miraculous machine. on the more physical side, it's made up of millions of moving parts, large and small. on a cellular level, things become microscopic, chemical. this is the world of the human hormone. >> a hormone is a chemical that is made in an organ, an endocrine organ, and that hormone, that chemical, is secreted into the bloodstream. >> mcfarland: here at the johns hopkins university school of medicine, dr. adrian dobs is professor of medicine and oncology. >> the kind of hormones that people are most familiar with, here's an example, is a thyroid hormone. thyroid hormone is

european regulators recently gave the exclusive right sanofi's drug for multiple scleosis that is similar to the biotech's treatment of ms. shares bounced more than 6 dollars friday. investors think the ruling from the e.u. could bode well for biogen. analysts warn it does not ensure the biotech comany will gain exclusive rights. blackberry's new phone is striking a sour tone with investors. wall street expected a third quarter profit, but the smartphone company reported a loss. shares slid more than 27% friday. blackberry forecast an operating loss for the second quarter, called the market highly competitive, and failed to give a clear update on sales of the new blackberry 10. google may be getting into the game with a video console. playing off the success of its android phones and tablets, the wall street journal reports the tech giant is working on a game console that could come out this fall. the company hopes to compete with apple's new products. google stock was up nearly 3 dollars friday. the drama continues to unfold for paula deen. more retailers are severing ties with the food