How Testosterone Works

How does this muscle-building hormone act in the body? What's the relationship between testosterone and masculinity? Does testosterone fuel aggression, or the other way around? Join Cristen and Caroline to learn more about this oft-misunderstood hormone.

Are hormones to blame for the obesity epidemic? Join Cristen and Caroline as they unravel the facts surrounding obesity, from genetic predispositions to the ways in which testosterone and estrogen can affect an individual's weight.

Researchers have reached conflicting findings about the potential health impacts of soy phytoestrogens, including the relationship between soy, breast cancer and testosterone. But what does it all mean? Join Cristen and Caroline to learn more about soy.

Testosterone, Sex and the Polyamorous Woman

Does baby food affect gender?