Showing posts with label Oxytocin. Show all posts
Showing posts with label Oxytocin. Show all posts

Monday, 3 December 2012

Masturbation, a brief description


Masturbation is the sexual stimulation of the genitals, usually to the point of orgasm. The stimulation can be performed using the hands, fingers, everyday objects, or dedicated sex toys. Mutual masturbation, masturbation with a partner, can be an alternative to sexual intercourse.
Studies have found that masturbation is frequent in humans of both sexes and all ages, although there is variation. Various medical and psychological benefits have been attributed to a healthy attitude to sex in general and to masturbation in particular, and no causal relationship is known between masturbation and any form of mental or physical disorder. Acts of masturbation have been depicted in art worldwide since prehistory. While there was a period (from the late 18th to the early 20th century) when it was subject to medical censure and social conservatism, it is considered a normal part of healthy life today.
Different studies have found that masturbation is frequent in humans. Alfred Kinsey's 1950s studies on US population have shown that 92% of men and 62% of women have masturbated during their lifespan. Similar results have been found in a 2007 British national probability survey. It was found that, between individuals aged 16 to 44, 95% of men and 71% of women masturbated at some point in their lives. 73% of men and 37% of women reported masturbating in the four weeks before their interview, while 53% of men and 18% of women reported masturbating in the previous seven days.
In 2009, the UK Government joined the Netherlands and other European nations in encouraging teens to masturbate at least daily. An orgasm was defined as a right in its health pamphlet. This was done in response to data and experience from the other EU member states to reduce teen pregnancy and STIs (STDs), and to promote healthy habits.
Female masturbation alters conditions in the vagina, cervix and uterus, in ways that can alter the chances of conception from intercourse, depending on the timing of the masturbation. A woman's orgasm between one minute before and up to 45 minutes after insemination favors the chances of that sperm reaching her egg. If, for example, she has had intercourse with more than one male, such an orgasm can increase the likelihood of a pregnancy by one of them. Female masturbation can also provide protection against cervical infections by increasing the acidity of the cervical mucus and by moving debris out of the cervix. In males, masturbation flushes out old sperm with low motility from the male's genital tract. The next ejaculate then contains more fresh sperm, which have higher chances of achieving conception during intercourse. If more than one male has intercourse with a female, the sperm with the highest motility will compete more effectively.
A 2003 Australian study found that men who ejaculated more than five times a week were a third less likely to develop prostate cancer. It also has the added advantage preventing erectile dysfunction and incontinence. Train yourself by timing how long it takes you to orgasm, suggests Ava Cadell, Ph.D., founder of loveologyuniversity.com. If it usually takes two minutes solo, try for three next time. Or count how many strokes you need to get to your happy place. If you’re spurting after 50, shoot for 60. “Most men can double the number of strokes and the time within one month,”
Ejaculation increases levels of the hormone cortisol, says Jennifer Landa, M.D., a specialist in hormone therapy. Cortisol, which usually gets a bad reputation as a havoc-wrecking stress hormone, actually helps regulate and maintain your immunity in the small doses. “Masturbation can product the right environment for a strengthened immune system,” she says.
Masturbating releases a slew of feel-good neurochemicals like dopamine and oxytocin that lift your spirits, boost your satisfaction, and activate the reward circuits in your brain. An orgasm is the biggest non-drug blast of dopamine available. A brain scan of someone having an orgasm looks similar to a heroin addicted brain.
As well as the beneficial effects from hormones released from masturbation there are positive medical factors in Sperm.
There are studies that have shown that semen could act as an antidepressant in women. The study included sexually active college females and found that not only were females who were having sex without condoms less depressed, but depressive symptoms and suicide attempts among females who used condoms were higher.

Semen contains at least 13 prostaglandins and high concentrations of hormones that retain potency if taken orally. The quality of the seminal hormones is thought to be superior to even prescription versions. In the study women who regularly consumed their lovers sperm showed such benefits as a reduction in ovarian cancers, lowered depression and many even had acne symptoms lessen or stop entirely. It is thought that the oral consumption of the potent hormones had a balancing effect on woman's hormonal ups and downs caused by their periods and pregnancy or breastfeeding. Semen is not only rich in vitamin "E" but it is a natural lubricant that moisturizes the skin and causes it to glow, which is good for the skin.
The key to the findings is "regular consumption". But only married or monogamous women showed the benefits. Those with multiple partners showed no beneficial effects or even reported detrimental effects. This is thought to be caused by the differences in the hormonal makeup of multiple partners.
While Female ejaculation comes from an area called the urethral sponge, or "female prostate." A watery fluid can be ejected from this gland upon orgasm (or sometimes without orgasm). This gland is analogous to the male prostate and thus its secretions are very similar to those of the male prostate.
Though it is not entirely clear what female ejaculate is made up of, researchers have concluded that it is not purely urine, and that it is not the odourless secretion of the Bartholin gland that helps lubricate the vaginal tract, but a combination of urine, acid phosphotase and other inconsistent chemicals.

These studies have also shown the existence of a prostate-like gland within females, previously thought to be non-existent. In 2007, the well-known Viennese researcher Dr Florian Wimpissinger published an important study on two women who habitually ejaculated. He and his colleagues found that the ejaculate from these two females was chemically very different from that of their urine. In particular, it contained more prostatic acid phosphatase (PAP), more prostate-specific antigen (PSA), and also some glucose.
The scientific reasoning of masturbation actually benefits human health can be argued but usually from a religious stand point. Although human sexuality is a personal preference, one can not ignore the positive effects that a simple body function can aid human health...


Tuesday, 4 September 2012

Oxytocin,the good and bad effects of a love potion

A previous article on pheromones concluded that you can't induce love or other positive emotions. But was I wrong to say that you can't induce some feelings with smell?. Further research shows a possibility of a alternative trigger. Oxytocin was discovered by Sir Henry Hallett Dale in 1906. The milk ejection property of oxytocin was described by Ott and Scott in 1910 and by Schafer and Mackenzie in 1911. The nine amino acid sequence of oxytocin was elucidated by Vincent du Vigneaud et al. and by Tuppy in 1953 and synthesized biochemically soon after by du Vigneaud et al. in 1953. Oxytocin was the first polypeptide hormone to be sequenced and synthesized.

Best know for releasing during sexual reproduction, child birth and facilitating breast-feeding, Oxytocin appears in the later stages of a relationship for pair bonding, social recognition and in the feeling of empathy.
Given its ability to break-down social barriers, induce feelings of optimism, increase self-esteem, and build trust, oxytocin is increasingly being seen as something that can help people overcome their social inhibitions and fears. Studies are showing that it may be effective in treating debilitating shyness, or to help people with social anxieties and mood disorders. It's also thought that oxytocin could help people suffering from post traumatic stress disorder. In addition, given that autism is essentially a social communication disorder, it's being considered as a way of helping people on the spectrum as well.
Oxytocin, through its trust-building actions, can help heal the wounds of a damaged relationship — another example of how the mind gets its plasticity. Amazingly, oxytocin can also be used to heal wounds (through its anti-inflammatory properties). Studies have also shown that a rise in oxytocin levels can relieve pain — everything from headaches, cramps and overall body aches. Now, that being said, the trick is to get some oxytocin action while you're in pain — which is not so easy. This is where synthetics can certainly help. Alternately, if you find yourself in physical discomfort, you could always ask your partner for a roll in the hay. So guys, be sure to use this crucial information the next time your significant other declines your advances and tells you she has a headache.

Perhaps surprisingly, it can also be used to prevent obesity in some instances. Researchers have observed that oxytocin and oxytocin receptor-deficient mice become obese later in life — and with normal food intake. Scientists believe that the hormone might be responsible for a series of beneficial metabolic effects, both in mice and humans. Moreover, by giving oxytocin-deficient obese mice oxytocin infusions, their weight returned back to normal levels. The mice also showed a reduced glucose intolerance and insulin resistance. This clearly suggests an alternative option for those struggling to keep the weight off.
Oxytocin was first observed to have a connection to depression through its effects on mothers suffering from postpartum syndrome. Researchers found that some new mothers were dealing with depression on account of low levels of oxytocin. In fact, they were able to predict postpartum during the pregnancy if the expectant mother had low levels of oxytocin. Recent studies of blood levels and genetic factors in depressed patients have revealed the potential for treating people with clinical depression, and even anxiety disorders.

Not surprisingly, given its ability to alleviate social anxiety and produce feelings of trust, oxytocin has the peripheral ability to reduce stress — which is no small thing when you consider the toll that stress takes on the body. Oxytocin has been observed to reduce cortisol in the body and lower blood pressure. It's also been known to improve digestion, which is often disturbed by high stress levels. Interestingly, oxytocin and the oxytocin receptors have been found in the intestinal tract; it improves gut motility and decreases intestinal inflammation.

In what could be seen as either a good or bad thing, oxytocin has been observed to increase generosity in humans. Evolutionary biologists, particularly those who subscribe to the selfish gene theory, have long struggled to understand why people sometimes share or give away things — often at a personal cost. But several lines of research have connected oxytocin to feelings of empathy. In one study that required persons to share money with a stranger, infusions of oxytocin were shown to make some subjects as much as 80% (wow!) more generous than those on a placebo.

Other results would further discolor the rose-tinted view. Some scientists have found that oxytocin boosts envy and schadenfreude, as well as favoritism toward one’s own clique. In one experiment, volunteers who played a game with people they knew were more cooperative after a noseful of oxytocin, while those who played with anonymous strangers became less cooperative.
Jennnifer Bartz, from the Mount Sinai School of Medicine, has found several responses that depend on a person’s mindset. She showed that socially secure people remember their mothers in a more positive light after inhaling oxytocin, while anxious ones remember mum as less caring and more distant. Along similar lines, she showed that oxytocin hinders trust and cooperation among people with borderline personality disorder. These nuances didn’t come out of the blue. When Bartz looked at the early oxytocin studies more closely, she found that around half of them showed that the hormone enhanced positive behavior only in certain situations or individuals.

Meyer-Lindenberg (Professor and Chairman of Psychiatry and Psychotherapy, University of Heidelberg) hypothesized that oxytocin boosts trust by suppressing the amygdala and its fear-processing networks. To test this idea, he asked 15 healthy men to sniff oxytocin or a placebo prior to undergoing a functional magnetic resonance imaging (fMRI) scan, which reveals what parts of the brain that are activated by particular activities. While in the scanner, the men performed tasks known to activate the amygdala — matching angry or fearful faces and threatening scenes.

Oxytocin might not be the miracle everyone would suggests, it has the ability to induced warm feelings and might reduce anxiety. But at a cost of rewiring your brain (maybe temporarily), to dull your ability to recognize certain danger. Considering both factors its best to weigh your options if you want to win friends and influence people. Considering that stress would reduce your oxytocin secretions say in a job interview, I have wondered if I was sprayed with it might I influence a positive outcome?. People can make up their own mind if they are willing to use Oxytocin, its still early days for a full research on the effects. But considering oxytocin has been around for quite sometime and is readily available on the internet, I just wonder if I might try my own experiment.