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One Molecule, Three Organs: Why the Same Drug Treats Erections, an Enlarged Prostate, and a Lung DiseaseThe active ingredient in this little softgel does something that should sound impossible. The very same molecule—tadalafil—is an approved treatment for three completely different problems in three completely different organs: erectile dysfunction, the urinary misery of an enlarged prostate, and, under another name, pulmonary arterial hypertension, a serious disease of the blood...0 Commentarios 0 Acciones 5 Views
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The Accidental Molecule: How a Failed Heart Drug Became the World's Most Famous PillIn the early 1990s, in a clinical trial run out of a Pfizer laboratory in the south of England, a group of male volunteers were testing a new compound meant to treat angina—the crushing chest pain of a heart starved of blood. The molecule, dryly labeled UK-92,480, was supposed to relax the vessels feeding the heart. It barely did. By most measures, the trial was a disappointment. Then the...0 Commentarios 0 Acciones 4 Views
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The Limits of the Amplifier: Why ED Pills Don't Work for Everyone — and What That RevealsFor most men these pills are close to magic. For a sizeable minority, they do nothing at all—and that fact is usually met with embarrassment, a suspicion that the pill is fake, or a quiet decision to give up. None of those is the right response. The roughly one-in-three men who don't respond are not a mystery. Their non-response is one of the most useful signals in all of male medicine,...0 Commentarios 0 Acciones 4 Views
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The Mind in the Machine: Performance Anxiety, the Placebo Effect, and the Psychology of Erectile DysfunctionWe tend to talk about erectile dysfunction as a plumbing problem—a matter of blood, pressure, and pills. And often it is. But it's also one of the most striking everyday demonstrations of something stranger and more profound: how directly the mind can reach into the body, for better and for worse. In few other places is the line between "psychological" and "physical" so thin—or so...0 Commentarios 0 Acciones 5 Views
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What Goes Up Must Come Down: The Science of How an Erection Ends — and the Emergency When It Doesn'tWe spend a great many words on how an erection begins and almost none on how it ends—which is strange, because the ending is every bit as engineered as the beginning, and the rare occasions when it fails to arrive are a genuine medical emergency. The way the body switches an erection off turns out to be one of the more elegant pieces of plumbing you'll ever meet. Understanding...0 Commentarios 0 Acciones 4 Views
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Why Sildenafil Can Tint Your World Blue: What One Strange Side Effect Reveals About How Drugs WorkOne of the strangest and best-documented side effects of sildenafil is that it can briefly tint your vision blue. Objects take on a faint cool cast, lights seem brighter, colors shift slightly—and then, an hour or two later, it fades. It's usually harmless. But it's also a small, rather beautiful window into one of the deepest principles in all of pharmacology: a drug's side effects are...0 Commentarios 0 Acciones 4 Views
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Why There Is No "Female Viagra": The Science of Desire vs. the Mechanics of Blood FlowThe phrase "female Viagra" promises a tidy symmetry: a pink pill that does for women what the famous blue one did for men. It's one of the most persistent ideas in popular medicine—and one of the most misleading. The reason a true "female Viagra" never quite arrived isn't a gap in pharmaceutical effort. It's a lesson about how differently desire and arousal are actually built, and it...0 Commentarios 0 Acciones 5 Views
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