Posts Tagged ‘testosterone’
Testosterone drops when dudes become dads
NORTHWESTERN (US) — Dads are biologically wired to care for kids, according to a new study that finds fatherhood lowers testosterone levels. Continue…
Wednesday, September 14, 2011 11:07 - 0 Comments
Science & Technology - Jul 15, 2011 9:33 - 0 Comments
Male fish go from ‘zero to 60′ to mate
STANFORD (US) — Subordinate cichlid fish have an impressive ability to rise to the procreative occasion with stunning speed if the alpha male—usually the only one to reproduce—abdicates. (more…)
Health & Medicine - Sep 28, 2010 9:50 - 1 Comment
Stress negates effects of testosterone
U. TEXAS-AUSTIN (US) — High levels of the stress hormone cortisol play a critical role in blocking testosterone’s influence on competition and domination. (more…)
Health & Medicine - Sep 15, 2010 12:13 - 0 Comments
Early nutrition shapes male maturity
NORTHWESTERN (US)—Boys who experience rapid weight gain in the first six months of life will most likely experience early puberty as well, according to a new study. (more…)
Science & Technology - May 24, 2010 10:25 - 2 Comments
Fearful fish picks a fight with its reflection
STANFORD (US)—Fish faced with their reflection in a mirror get aggressive, but also show an unexpected element of fear, which they don’t show when fighting a real foe. (more…)
Health & Medicine - May 11, 2010 14:38 - 8 Comments
Diabetes causes drop in testosterone
U. BUFFALO (US)—The effect of diabetes on lowering testosterone levels is similar to a weight gain of 20 pounds, according to new research that finds 40 percent of obese men have below-normal testosterone levels. (more…)
Science & Technology - May 4, 2010 11:18 - 1 Comment
The downside to tons of testosterone
INDIANA U. (US)—Too much—or too little—testosterone may put some males at an evolutionary disadvantage, according to new research involving an American songbird. (more…)
Health & Medicine - Feb 25, 2010 12:03 - 1 Comment
As testosterone dips, quality of life dims
U. SHEFFIELD (UK)—Male cancer survivors who develop testosterone deficiency often report having impaired quality of life and reduced energy levels, indicating replacement therapy may benefit some patients. (more…)
Health & Medicine - Jan 5, 2010 12:49 - 0 Comments
‘Macho’ receptor slows wound healing
U. ROCHESTER (US)—A molecular receptor pivotal to the action of male hormones such as testosterone also plays a crucial role in the body’s ability to heal, report scientists in the December issue of the Journal of Clinical Investigation. (more…)
Science & Technology - Dec 9, 2009 14:54 - 0 Comments
Why King Kong failed to impress
DUKE (US)—Humans have the same receptors for detecting odors related to sex as do other apes and primates. But each species uses them in different ways, stemming from the way the genes for these receptors have evolved over time. (more…)
Health & Medicine - Nov 16, 2009 16:25 - 2 Comments
Phthalates prevent boys from being boys?
U. ROCHESTER (US)—A study of 145 preschool children reports that when the concentrations of two common plastic softeners—known as phthalates—in mothers’ prenatal urine are elevated their sons are less likely to engage in male-typical play. (more…)
Society & Culture - Oct 22, 2009 12:24 - 0 Comments
Testosterone tumbled in McCain’s male voters
DUKE (US)—Young men who voted for Republican John McCain or Libertarian candidate Robert Barr in the 2008 presidential election suffered an immediate drop in testosterone when the election results were announced. (more…)
