brain

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SEX IS HEALTHY

Published March 15, 2013 by Tony

HEALTH BENEFICTS OF SEX

sex benefits

Some recent studies on sex show that it improves intellectual abilities and relieves headache’s symptoms.
Italian researchers at the University of Pavia, published a study that associates sex with the capabilities of the brain. By the tests conducted on various groups of couples, those who had a more intense sexual activity showed a greater nerve cells growth, which, as we know, is essential for body and mind’s well-being. This shows that frequent sex reduces stress and facilitate the functioning of the brain and thus of the intellect. These results, published in the German newspaper Berlin Zeitung, is related to the increase in prolactin that occurs during sexual activity and that improves cellular oxygenation in the brain.
These data are consistent with other researches linking sexual activity to physical and mental health. Among them, two Australian studies published in the International British Journal of Urology, whereof one showing that regular and numerous ejaculations reduce the risk of prostate cancer in men, and the other that a sexual satisfaction increases vitality and psychological well-being in women.
A healthy sexual activity is also able to relieve, in a partial or total way, the symptoms of headache, also when it comes to migraine or the worst ‘cluster headache’, as a recent study by the Department of Neurology at the University of Munster has demonstrated, after having analyzed the effects of the sexual activity on various forms of headache in 1,000 patients.

But, sex’s benefits do not end there, because other researches has shown that:
it helps to sleep;
activates the immune system and helps to be in shape;
in women decrease the risk of incontinence and defend the vaginal mucous membranes;
oxytocin and beta endorphins produced during sex, limit the action of stress hormones and this helps to keep our skin young and healthy, also protecting from the harmful effects of smoking and sun. A strong sex activity stimulates the production of oils in our body, helping the skin to stay elastic and hydrated;
in men hearty sex protects the heart and arteries due to higher testosterone production;

Is not that enough for you?
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Sex’s Physiology

Published January 24, 2013 by Tony

SEX ROUSES SEX
Sex’s Physiology

Saying that sex stimulate sex itself may sound strange but it’s true!
So, Viagra aside, if you want more arousal and wish to have more sex, you should have sex…. and more frequently! Like any machine, each human body’s part works better if regularly is made operated.  It is not me to say this, but the complicated chemistry of our body and what happens during a sexual act, which I will try to explain briefly below.

From the moment an intercourse has begun, a lot of physical and chemical changes already have occurred in man’s body.
The first to work are Pheromones, chemical substances produced by both sexes that trigger the physical attraction. The same substances that attracts the male animal to the female when in the fertile period. Among them is the Phenylethylamine, a chemical stimulant responsible for the euphoric state and excitation, which stimulates the libido through the release of Dopamine, another chemical neurotransmitter that, in turn, promotes the synthesis of Testosterone, the king of sex hormones.
After the state of “well-being” due to the dopamine, comes a general agitation caused by Norepinephrine, widespread

molecule in the nervous system, especially the hypothalamus and the limbic system. This molecule causes excitement, euphoria and enthusiasm, but also promotes contraction of the sexual organs’ veins and keeps the blood to sustain the erection. The Noradrenaline regulates the production of Adrenaline which causes an increase in heart rate, respiration and blood pressure, often giving rise to the redness of the face.
guy penis erectionOur body starts to produce Endorphins.
Meantime, the erection has led to the activation of two portions of the spinal cord: a “sacral center” that sends direct impulses to the penis, keeping vasodilation, thanks to the stimuli sent by the glans; and a “lumbar center” which is receiving some pulse from the brain activated by visual, olfactory, tactile and auditory excitement. The arousal, to stay alive, needs constant reinforcement of the fulfillment that is guaranteed by the stimulation of a bundle of nerve fibers, sensitive to dopamine, which runs below the cerebral cortex. It is a fundamental structure of the brain stem with an associative function, which is not exclusive of the cortex. The Endorphins are chemicals produced by the central nervous system and equipped with a powerful analgesic and exciting activity, therefore act as “natural anesthetic” with benefits similar to morphine and other opiates (relieves pain and gives physical well-being). This is the reason why during each sexual act any man has more vigor, and as if anesthetized feels less pain while all the other organs of the body seem to be paused, as if the only purpose is to go ahead and complete the sexual act. Mind, body and senses, overwhelmed by these hormones and the great excitement, go in a limbo!
After the ejaculation the amount of endorphins and Oxytocin increase considerably.

CLICK ON TO SEE EJACULATION

CLICK TO SEE EJACULATION

Oxytocin is a hormone produced from the rear of the pituitary gland that stimulates the genitals. It is called the “love or cuddle hormone” because also generates feelings of affection, protection and well-being in the pair, which above all, strengthens the love’s emotional component. This hormone participates, at various levels, to the sexual response, favoring the orgasm, through the activation of the limbic system. Prolactin, like serotonin, in contrast with oxytocin, does not promote sexual arousal and is sometimes responsible for erection issues. Normally, the hypothalamus produces a factor that inhibits the secretion of prolactin and so, when the prolactin increases, it means that the hypothalamus is overstimulated. This can happen for a reduction of the dopamine (as in the case of depression); it is precisely this neurotransmitter which stimulates the production of the factor inhibiting the prolactin. It usually happens by the use of drugs such as beta-blockers, antidepressants, anxiolytics or anti-ulcer which increase prolactin secretion. The increase in oxytocin inhibits arousal from which the deflation of the penis, and this hormone is also responsible of the refractory period (recovery time) following the ejaculation, blocking libido and erection. The increase in endorphins, similar to morphine and heroin influence, reinforce this effect, and this is the reason of lack of interest to sexual activity of heroin addict people.  Unlike men, some women do not experience a refractory period immediately after orgasm and in many cases are capable of attaining additional, multiple orgasms through further stimulation. As average, young men (16 – 22-years-old)  have a refractory period of about 10-20  minutes, that then increasing with age, till to need more than 20 hours for older men.
Orgasm is without doubt the most complete moment of
abandon/isolation for human being. At that moment he is not afraid of any danger, with eyes closed and cessation of any cognition. The individual, for a moment, abstract himself from the environment with a high threshold to pain, because of the endorphins. For everyone, “the little death” (petite mort), as it is called, is, paradoxically, a short moment of absence which coincides with the maximum externalization of his biological being, because taken from the act of procreation which is the ultimate and most important goal of his existence.
It should be noted that sex hormones are produced in direct order of the brain, not for nothing it’s said that sex is made by brain. The starting unit resides in the hypothalamus which calls for the anterior pituitary gland to emit two distinct sex hormones. The first is the FSH, follicle-stimulating hormone, that in the male acts in a part of the testicles, promoting the production and maturation of sperm; the other pituitary hormone is the LH, luteinizing hormone, which in the male stimulates the production of testosterone by the testes.

At the end of any sex act, therefore, we will have different circulating hormones, which in addition to promoting the production of new semen, have increased levels of testosterone and those pheromones which, as mentioned, increase sexual stimulation. This is the reason why pubescent boys, who blessed do not need additional arousal, become easily masturbation-addict, if they do it very frequently. Do you have ever got another erection after a sex intercourse (recovery time permitting) or still lust in the immediate aftermath?  Staying in circulation, these chemicals promote, later in time, excitement and desire to have sex again. Subsequently,  you even could notice a turgid penis, due to the better blood circulation inside the penis.

Just sex that stimulates other sex.
As if to say, appetite comes with eating.

ORGASM & LOVE

Published October 27, 2011 by Tony

Brain during Sexual Intercourse

male_and_female_brains

What does happen in the mind of a woman during a sexual intercourse?

In addition to cinema and literature suppositions, we now have a scientific answer thanks to a research of Rutgers University (New Jersey).
To unravel the mystery, the scientists scanned the brains of some women while having sex, and found that during the orgasm, up to 30 different parts of the ‘grey matter’ are activated. Included those responsible for emotion, touch, joy and memory.
A ‘mix’ that, after the intercourse, make women more likely to fall in love with the partner than men.
The scientists also found that two minutes before reaching orgasm, the same areas that ordinarily work when we eat or drink also is affected in the brain.
“Just before women reach the apex – the study says – even other areas of the brain are affected by strong ‘vibrations’ due to the arousal, such as the sensory cortex”. This brings the nervous system to become dull to the point that no pain but only pleasure is felt.
The last part to become active is the hypothalamus – as scientists say on an article published on the British newspaper the ‘Daily Mail’ love-on-brain-111610the area delegated to the ‘control’, but at this point, woman has already been conquered. This study gives us now the scientific reason why women need cuddles and look more loving after the sexual act.
The key hormone “oxytocin” released during sex is also known as the ‘cuddle hormone’. This lowers our defences and makes us trust people more, says Dr Arun Ghosh, a GP specialising in sexual health at the Spire Liverpool Hospital. It’s also the key to bonding, as it increases levels of empathy. Women produce more of this hormone, although it’s not clear why, and this means they are more likely to let their guard down and fall in love with a man after sex.
For women especially – the mind plays a key role in achieving orgasm. The key to female arousal seems to be deep relaxation and a lack of anxiety. For men, instead, the intercourse and the orgasm leads the nervous system to produce more dopamine, the pleasure hormone, and this surge even can be addictive.This is the mainly reason of man’s urge in searching sex.
Funny! I’m sorry people! All that , let me summarize that – for women sex is mental, for men an addictive need.
The next challenge for researchers is to map the brain of the men, always at the most ‘hot’ times. But, in this case I guess that the hypothalamus just will be the first brain’s area to work…..

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DOES INTERNET MAKE STUPID?

Published September 10, 2011 by Tony

PC, CELL & INTERNET MAKE US LAZY?!


According to a recent study of Columbia University, the abuse of search engines could bring the brain to get lazy.
Which of you  still remember the advice of the teachers at school – “…avoid to have recourse to the calculator for the computation and train your mind?” –
The concept is the same.
Today, thanks to computer, cell and Internet most of us do without memorizing data, because we then can go back any information easily,  by a few clicks on computer or cell, independently if it’s a telephone number or information.
Why must I remember if I can find everything I need whenever and wherever I want?
In short, (rote) learning and memory would be strongly influenced by the presence of digital media that people usually use.
It’s a fact that the new technologies are changing lifestyle, but someone else says, on the contrary, that beyond memory performance,  the new technologies help to be more efficient extending our cognitive capacities too.
Which of them is right? Who will live, will see!

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