HowStuffWorks explores the functions -- and dysfunctions -- of the reproductive system. Learn about maintaining a healthy sex life and avoiding and treating sexual problems.
As sexology has moved from surveys and self-reporting to laboratory settings, male bisexuality has been caught in the scientific crosshairs. Why do some question its legitimacy as a bona fide sexual identity?
Green Sex: Who knew tomatoes and cornstarch could be so stimulating? Our sex-pert exploits the pantry. Learn more about these 5 surprisingly effective all-natural aphrodisiacs.
Our Green Sex expert explains how to put a little more pep in your step without popping prescriptions. Learn more about these 8 vitamins and herbs to improve your sex life naturally.
The most potent aroma proven to stimulate women isn't men's cologne or even champagne; it's actually the all-natural scent of licorice.
There are a lot of choices for lubrication out there; our green sex columnist rounds up the greenest choices. Learn more about lubrications choice safe and natural.
Our Green Sex columnist ask what every guy wants to know, but none dares ask: Does natural male enhancement really exist? Learn more about natrual made enhancements that really work.
Everyone feels self conscious at one time or another. But if you're feeling insecure, it's time to start feeling comfortable in your own skin.
Years ago, you might've asked "Will you respect me in the morning?" Today, it's a bit more complicated.
Dating and mating may be tough, but our sexy slang dictionary will shed some light on those tricky terms.
America's sexual history has changed quite a bit over the past 50 years. Learn more about our ever-changing mojo.
A true fetish is the sole key to a person's arousal, but in the more common use of the term, a fetish simply plays a supporting role. What are five of the most common?
Sex -- whether alone or with a partner -- is a natural, healthy part of life. Learn how to stay happy by optimizing your sexual experiences.
Call them what you will -- adult novelties, personal massagers, paroxysm aides, love props -- sex toys are more common than you might think. How common? Read on.
Why are vaginas so taboo? Researchers have shunned them for decades, which means we know much less about the female anatomy in comparison to the male counterparts. Does out of sight really mean out of mind? Not here, as we explore how vaginas work.
Secondary sex characteristics appear during puberty and include breast development and facial hair. Learn about secondary sex characteristics from this article.
Few things in life can be as unsettling as having your libido disappear. Even more frustrating is not knowing why. Here, we'll discuss 10 things that can reduce sex drive.
More children are starting to enter puberty earlier than ever. Learn why early sexual development happens in this article.
The use of hormones in food is a highly debated issue and raises concerns as to possible health risks, especially in children. Learn if hormones in food are causing early menstruation in this article.
Planned Parenthood clinics operate as independent entities. Learn about Planned Parenthood in this article.
Think you know everything about women's hormones just because you know to bring home chocolate during her time of the month? Think again. Check out our list of things that men should know about women's hormones.
Billions of bytes land in e-mail boxes across the country promising potency, better sex and increased penis size. So the question is: Do these natural male enhancement aids really work?
We all know that regular exercise can help keep you healthy. But did you know that it could also improve things in the bedroom? If you're ready to impress, you'll want to try these specific exercises to improve your strength, flexibility and stamina.
Sex feels good. And, as it turns out, going green makes us feel good, too. From natural aphrodisiacs to organic lubes, we can green up our sex lives and have lots of fun doing it. So slip into something sustainable and get busy saving the planet.
When it comes to sex, our curiosity is limitless -- even if many of us are too squeamish to admit it. We have all sorts of topics, from safe sex to sexual dysfunction, that we're afraid to discuss with our partners and doctors, even though we should.
Ah, testosterone, the male hormone with the bad-boy reputation. But does it really cause aggression in men? Do women also secrete testosterone in their bodies? Find out what else women need to know about male hormones.