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All methods of contraception are used to prevent pregnancy, but condoms have the added advantage of providing protection against infection and the spread of sexually transmitted diseases (STDs). How effective are condoms at doing these two things? Are they really as effective as other contraceptive methods at preventing pregnancy? And since one of the most common reasons for using a condom is to protect against infection, are they really an effective barrier against being infected by STDs? In this article we look at some of these questions. Does using a condom prevent pregnancy? Condoms are an extremely effective means of preventing pregnancy. Of course, no method of contraception is 100% effective because there will always be instances of incorrect or inconsistent use. This is as true of "the pill" or any other form of contraception as it is of condoms. However clinical studies have shown that high quality condoms, when used consistently and correctly, provide an excellent barrier against pregnancy. These trials have shown that correct and consistent use of condoms can have between 95% and 98% contraceptive efficacy rate. How often do condoms fail? The main reason that condoms "fail" to prevent pregnancy or infection is not because the condom itself has "failed", but because of incorrect of inconsistent use. Latex condoms can be weakened by oil-based lubricants like petroleum jelly. They can also be weakened by exposure to sunlight or by age. Sometimes they are torn by teeth or fingernails. But putting these incorrect uses aside, condoms almost never "fail". How often do condoms break or slip off? In the United States, most studies of breakage caused by fault in the condom itself have shown breakage rate is less than 2 condoms out of every 100 condoms. Studies also indicate that condoms slip off the penis in about 1-5% of acts of vaginal intercourse and slip down (but not off) about 3-13% of the time. Again, these rates are influenced by the care one takes when using a condom. Are condoms effective at preventing infection from HIV or STDs? Studies have shown that if a latex condom is used correctly and consistently (every time you have sex), they are a highly effective barrier against infection. This has been demonstrated most clearly by studies of "discordant" couples in Europe. A "discordant" couple is one in which one partner in infected with HIV and the other one is not. In a study of 123 couples in which condoms were used consistently, none of the infected partners became infected. Do thinner condoms give less protection against pregnancy and STDs? Thinner condoms are equally effective as a protection against both pregnancy and infection by STDs. However they may be more easily damaged by fingernails, teeth, jewelry and other incorrect uses, so extra care should be taken when using a thinner condom. Are all condoms thoroughly tested before being sold? All brand name condoms are subjected to rigorous quality control tests at every stage of the manufacturing process. In the US, each condom is electronically tested for holes and defects. Samples are taken from each lot and visually examined using a water leak test. In this test the samples are filled with 300 ml of water and suspended for 3 minutes. Samples from each lot are also subjected to an Air Inflation Test. This involves filling the test condoms with air until they reach the bursting point. They typically will hold about 40 liters of air -- the equivalent of 9 gallons of water! Other samples are checked for size and thickness, some are tested to destruction for physical strength, and still others are artificially aged by applying high temperatures to ensure that they will retain their quality well beyond their 5 year product life. In all regards, condoms have been shown to be an effective way to prevent pregnancy as well as being a highly effective way of guarding oneself against HIV or STD infection. best penis enlarement guide to penile enlargment free pennis enlargement exercise best penile enlargement penis enlargement fact penis enlagement before and after photo penis enlargment excersizes top penis enargement pills

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Testosterone is a member of the steroid family of hormones called androgens. More and more, this family is derived through chemical conversion from the steroid ring-structure of cholesterol. This hormone plays a vital role in the bodies of both men and women. There are only minor differences between this hormone and others such as estrogen, progesterone, DHEA, cortisone, and androstenedione. They are small molecules, which becomes important when we look at what routes of administration are available. As commonly known, testosterone stimulates the development of the penis and testes, growth of facial and pubic hair, deepening of the voice, changes in body shape, growth of bones, and increased muscle mass and strength in males. It helps maintain sex drive and the production of sperm cells, and it may play a role in balding. Mood is also affected by testosterone, and low levels of the hormone can cause severe and prolonged depression as well as fatigue, to name a few conditions. High levels of testosterone appear to promote good health in men, for example, lowering the risks of high blood pressure and heart attacks. High testosterone levels also correlate with risky behavior, however, including increased aggressiveness and sometimes even smoking, which may cancel out these useful health benefits. Ninety-five percent of circulating testosterone is produced in the male testicles under the influence of a hormone released from the pituitary gland called luteinizing hormone (LH). Throughout the day, LH is released in spurts that stimulate the release of testosterone from the testicles. The signals are particularly strong in the early morning, which accounts for the higher testosterone levels and spontaneous morning erections and increased libido. By the late evening the levels of testosterone can fall by 50-percent, which signals the pituitary gland to increase its production of LH to restart the cycle. penile enlargment technique surgical penis enhancement vimax penis enlargement secret penis elargement product top penis elargement pills homemade penis enargement natural penis enlargment and lengthening vimax patch free natural pnis enlargement

Ok, so maybe you started smoking thinking it looked cool and that it might affect your sex life to look cool, or be grown up or rebellious or whatever. You are of course totally correct in assuming that smoking affects your sex life. In fact, several recent studies have looked at exactly this question in regard to male impotence and found that there is a link between smoking and difficulties having an erection. Now tell me how cool is that? That is surely far too grown up, that is as grown up as your aged grandfather! Smoking has been linked to coronary artery blockage, but now we know that arteries in the penis are damaged by smoking, too. In a study of men with penile artery blockage (average age 35), the smokers were significantly more blocked than non-smokers. And the more they smoked, the more their arteries were blocked. Since erections are mainly caused by blood flowing into the penis through arteries, unclogged arteries are very important in enhancing one's sex life. Nicotine is a vasoconstrictor, meaning it tightens blood vessels and restricts blood flow. In the long term, it has even been shown to cause permanent damage to arteries. Since a man's erection depends on blood flow, researchers assumed smoking would affect erections. Studies have confirmed this time and again. In one study published in 1986 in Addiction Behavior, it was shown that just two cigarettes could cause softer erections in male smokers. Results are corroborated by a definitive study published in June 2001 that looked at all studies done on impotent men over the last two decades. The research showed that 40 percent of men affected by impotence were smokers, as opposed to 28 percent of the general male population. Interesting eh? So what does all this discussion about impotence mean for women? During sexual arousal, the labia, clitoris, and vagina also swell up with blood, similar to a man's penis, enhancing sensation and arousal. If nicotine can restrict blood flow and cause erectile dysfunction in men, it can be assumed that blood flow is restricted in women as well, and may have a negative effect on sensation. In the British Medical Associations report: "Smoking and Reproductive Life", the report states that Women who smoke take longer to conceive. Among smokers, the chances of conceiving fall by 10 – 40 per cent per cycle. The greater the quantity of cigarettes smoked, the longer a woman is likely to take to achieve pregnancy. Cigarette smoking can also affect male fertility: smoking reduces the quality of semen. Men who smoke have a lower sperm count than non-smokers, and their semen contains a higher proportion of malformed sperm. By-products of nicotine present in semen of smokers have been found to reduce the mobility of sperm. Of course, quitting smoking would also eliminate stained teeth, unhealthy skin, rapid accumulation of wrinkles on the face, and clothing, hair, and breath that stink of smoke. That might improve one's sex life. Decreasing your risk of cancer and heart disease — which also do tend to have negative effects on one's sex life — can also be sexy in the long run. Smokers may have enjoyed a sexy image in the past, but research tells us that they are not "doing it" as often as non-smokers. Studies show that men between 25 and 40 years who smoked one or more packs per day had sex less often than non-smoking men of the same age. Another study suggested that carbon monoxide in the blood caused by smoking inhibits the production of testosterone (a hormone that creates sex drive). Lastly, smoking affects fertility. Smokers' sperm come in many sizes and shapes - many of them not normal. Some have two tails or two heads, others have giant or tiny heads, and some have split tails. The more a man smokes, the worse the damage. Nicotine essentially poisons the sperm and its ability to fertilize an egg. Smoking isn't good for your lungs or heart as is very well documented, and it certainly isn't good for your sex life. It is no longer cool. Are you sleeping with an inactive ashtray? Is your libido being smoked away? vimax compare penile enlargement pills enlagement penis pill vimax pnis enlargement free penile enlargment vimax truth about penis enlargement pills pennis enlargement surgery photo penis enlargement surgery picture free natural pnis enlargement

If you need to spice things up in the bedroom, it’s always a good idea to throw in some toys for you and your partner to have fun with. Here are some simple sex toys for those who are new to the experience: 1. A vibrator – It’s best to start with a simple vibrator, and if you’re a lucky man, your partner may already have one. You can easily stimulate her clitoris using this device, especially if she’s having a hard time to climax. Vibrators are quite handy for guys too – she can use this to tease your prostate to give you a more powerful orgasm. 2. Handcuffs or scarves – These are great for simple role-playing (cops and robbers bedroom style). You can cuff yourselves to each other, or one of you can be cuffed to a bedpost. By limiting your movement this way, you can find more creative positions to give each other pleasure. If you’re using scarves instead of cuffs, you can use them as a blindfold too. After all, increasing the element of surprise can do wonders for your libido. 3. Boardgames – Don’t break out Monopoly out of the box just yet, an game like “Twister” can be more interesting if you play it while you’re naked. There are also several sex-oriented board games on the market, like Sex Questions and Pervarsity, and you might want to look into those. 4. Edible body paint – If you and your partner have artistic inclinations, using edible body paint is a good way to express yourself when you’re inspired. Sexually, that is. You can paint on each other and lick it all off after. Some paints are chocolate flavored, and we all know that most women can’t resist chocolate! 5. Penis rings – They come in all shapes and sizes, and they’re good for both you and your partner. They can make your erections more intense, as well as stimulate her vagina in ways that a naked penis won’t. This is a good toy for those who want to put a little variety when it comes to penetration. Once you feel as if you and your partner are past the "beginner's" stage of sex toy usage, go ahead and experiment! There's a whole treasure trove of sex toys available for the advanced user. online vig rx cheap vigrx pills vimax penis enlargement forum natural penis elargement pills natural penis enhancement free penis elargement exercise penile enlargment drug vimax free penis enlargement video free natural pnis enlargement

Erectile dysfunction is a common problem for more than half of men with diabetes. A recent study from the Brady Urological Institute at Johns Hopkins suggests that an over-supply of a simple blood sugar could be a major cause of erectile dysfunction in diabetic men. Describing the mechanism of erection, the research team has determined that high glucose in diabetes mellitus is an interrupting factor of this process. Erection begins when a sexual stimulus activates the enzyme neuronal nitric oxide synthase (nNOS) that causes short-term release of nitric oxide (NO) at the nerve endings in the penis. This initial release of NO causes short-term and rapid increases in penile blood flow and short-term relaxation of the penile smooth muscle, initiating an erection. The resulting expansion of penile blood vessels and smooth-muscle relaxation allows more blood to flow into the penis. This increased blood flow (shear stress) activates the eNOS in penile blood vessels causing sustained NO release, continued relaxation and full erection. O-GlcNAc, a blood sugar present in hyperglycemic (high blood sugar) circumstances, hinders this normal chain of events by inhibiting the activation of eNOS, and consequently reducing the release of NO and preventing the smooth muscle in the penis from relaxing. Without this relaxation, there is no shear stress to stoke the production of more NO and therefore, no normal, sustained erection. This is not the same type of erectile dysfunction seen in non-diabetics, and it is less effectively treated with conventional drugs like Viagra. The mechanism described above stresses the critical importance of vascular function in the erectile response. It may suggest new ways of treating erectile dysfunction by targeting specifically this mechanism in penile erection.