Science of Men

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Testosterone-it affects a man's strength, sex drive, desire for status, and parenting skills. It even affects how long he will live. This program explores the science behind masculinity and the central role testosterone plays in male development. At Texas A&M, Dr. Gerianne Alexander tracks the eye movements of infants and the gender-based preferences they reveal. Further links between testosterone and behavior emerge at the University of Texas, where researchers correlate higher basal levels of the hormone with a preference for achieving status over earning money. In Jamaica, a revealing study analyzes the testosterone levels of men with varying degrees of fatherly commitment
Testosterone: Violence, Sex, and Power (0:56)
Testosterone: Myth and Reality (0:55)
Male Behavior and Testosterone (1:10)
Testosterone Molecule (0:57)
Testosterone in Animals and Humans (1:10)
Primate Research Center (1:02)
How to Gather Samples of Chimp Testosterone (1:28)
Analysis of Chimp Testosterone (1:01)
Testosterone in the Womb (0:47)
Testosterone Levels: The Finger-Length Test (1:00)
Gender Stereotyping (1:03)
Technology and Sex-Determined Behavior (1:10)
Testosterone: Tests with Monkeys (1:06)
Adolescence: Age of Testosterone (1:05)
Male Behavior and Mating Rituals (0:57)
Testosterone and Adolescence (1:14)
Change in Social Setting and Male Dominance (2:45)
Fluctuating Testosterone Levels (1:10)
Testosterone, Men, and Sports (1:00)
Testosterone and Male Competition (1:07)
Competition Losers, Winners, and Testosterone (1:14)
Cost of High Testosterone (1:07)
Hyenas: Submissive Males (1:04)
Experiments with Hyenas (1:03)
Testosterone Levels in Female Hyenas (1:23)
Aggression and Testosterone in Human Males (0:48)
"Ultimatum" Game for Males (1:34)
Testosterone and Social Status (1:02)
Testosterone Levels and Status Threats (0:57)
Testosterone and Mating Game (1:08)
Female Preferences for Males (0:55)
Females Chose Males (0:52)
Marriage and Testosterone Levels (0:52)
Fatherhood and Testosterone Levels (1:14)
Lower Testosterone Levels in Fathers (1:31)
Children Affect Male Testosterone Levels (0:52)
Manipulation of Testosterone Levels (1:01)
Transgender Issues (0:59)
Testosterone and Libido (1:07)
Affects of Testosterone in Males (1:12)
Testosterone Levels of Rugby Team (1:37)
Testosterone Responds to Circumstances (1:04)
Testosterone: White Collar vs. Blue Collar (0:40)

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