Although the term can be joked, sex addiction is a psychological problem that can have serious consequences on the lives and social relationships of those who suffer from it. For this reason, a team of psychologists and psychiatrists from the University of California have formulated a list of criteria to diagnose the so-called 'hypersexual disorder' as one more type of mental health disorder.
As the French neuroscientist Serge Stolerú recently demonstrated after scanning the brains of several men before and during an orgasm, in the male gray matter there are two areas, the cingulate cortex and the amygdala, which instruct the rest of the brain to deactivate any sensation of desire after sexual intercourse.
According to a French study from the University of Lyon published in the journal Animal Behavior, smaller male tree frogs (Hyla arborea) are placed close to their large rivals to make it appear that their calls to attract females are more powerful than what they really are.
In the waters off the Mexican coast, scientists from North Carolina State University (USA) have discovered a fish that has four hook-shaped hooks on its penis. The new species has been named Gambusia quadruncus.
According to research from the University of Liverpool (United Kingdom) published recently in the specialized journal Chem Senses, although studies on the perception of armpit sweat show that human smell does not seem to distinguish between samples from the left and right armpits, which is true is that their smells are quite different.
Having sex can cause important changes in females, including alterations in libido, fertility, immunity, eating habits, fluid retention and sleep patterns, according to a study from the University of East Anglia ( UK).
There is a popular belief that an individual's sexual orientation can be detected by the dilation that their pupils experience when they see an attractive person. For the first time, researchers at Cornell University (USA) have tried to find out if this idea has any scientific basis. Their findings are published in the journal PLoS ONE.
Having sex can be very dangerous if you are a harmless fly and predators stalk you. A study carried out by scientists from the Max Planck Institute of Ornithology (Germany) reveals that bats are able to locate flies by the noise of their wings when they mate, and take advantage of this intimate moment of carelessness to catch their prey red-handed.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
