18th of March 2015

Research Report, March 18th 2015

Pair-Bonding, Romantic Love, and Evolution

Summary: Researchers argue that the adaptation of romantic love may have played a key role in the evolution of our big, sophisticated brains and social aptitude. “In modern human families romantic pair bonds typically lie at the heart of the extended family,” the authors write. “These shared cooperative efforts to raise offspring and support others would have enabled hominins to evolve larger brains and stretch child development from birth to early adulthood—far beyond the levels apes could attain.” –APS

Stay or stray? Evidence for alternative mating strategy phenotypes in both men and women

Summary: If their analysis is correct, Dr Wlodarski and his colleagues have probably stumbled on a type of equilibrium known to biologists as an evolutionarily stable strategy, in which a way of behaving becomes more advantageous as it gets rarer, and less so as it gets commoner. Cads (promiscuous men) succeed when dads (monogamous men) are frequent, and vice versa. Neither can conquer and neither can vanish. Such equilibria are part of a branch of maths called game theory—a name both men and women might think eminently appropriate –The Economist

Upset Over Sexual VS Emotional Infidelity Among Adults (Jealousy)

Summary: Consistent with the evolutionary perspective, men were more likely than women to be upset by sexual infidelity and less likely than women to be upset by emotional infidelity.

Physiological changes in response to hearing female voices recorded at high fertility

Summary: “A man’s ability to identify and respond to a fertile woman confers him a potential reproductive advantage when choosing between potential mates,” the study’s author, psychologist Dr. Melanie Shoup-Knox. “Women, on the other hand, may get a competitive advantage from detecting the fertility status of other females.” –The Telegraph

Energy Expenditure during Sexual Activity in Young Healthy Couples

Summary: Results revealed that there was substantial variability in how long sex (which included both intercourse and foreplay) lasted across couples, ranging anywhere from 10 minutes to 57 minutes (25 minutes was the average). So how many calories were burned in an average sexual session? For men, that number was 101 calories (4.2 calories/minute), whereas for women it was 69 calories (3.1 calories/minute).

How did sex stack up to jogging? Both men and women burned more than twice as many calories during their time on the treadmill as they did during sex. Across 30 minutes of jogging, men burned 276 calories (9.2 calories/minute) and women burned 213 calories (7.1 calories/minute). –Sex and Psychology

Predictors of Sexual Dysfunction Incidence and Remission in Men

Summary: Men suffering from sexual dysfunction can be successful at reversing their problem by focusing on lifestyle factors and not just relying on medication, according to research among men aged 35-80 years.

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