JSTOR Daily

Gonadotropin Hormone Modulation of Testosterone, Immune Function, Performance, and Behavioral Trade‐Offs among Male Morphs of the Lizard Uta stansburiana

Abstract: Sexual selection predicts that trade‐offs maintain trait variation in alternative reproductive strategies. Experiments often focus on testosterone (T), but the gonadotropins ...
JSTOR Daily

Changes in Plasma Levels of Luteinizing Hormone and Sex Steroid Hormones in Relation to Multiple-Broodedness and Nest-Site Density in Male Starlings

Changes in plasma levels of testosterone (T), progesterone (P), and luteinizing hormone (LH) were studied over the reproductive cycle in two double-brooded populations of European starlings (Sturnus ...
AOL

Total vs. free testosterone: What’s the difference & why it matters

Testosterone is the quintessential male hormone (androgen), and it’s a busy one, helping to regulate intimate function, muscle mass, red blood cell count, mood, and more. But not all testosterone in ...
EurekAlert!

Pheromones in male perspiration reduce women's tension, alter hormone response

PHILADELPHIA -- Scientists at the University of Pennsylvania and the Monell Chemical Senses Center in Philadelphia have found that exposure to male perspiration has marked psychological and ...