22 June 2012, 08:13 AM ET
Testosterone's effects on sexual desire are complex.
06 June 2012, 04:45 PM ET
Advertisers are turning to bare skin to catch eyes.
01 June 2012, 10:07 AM ET
While not the most efficient way to reproduce, sex has other benefits as well.
31 May 2012, 05:41 PM ET
Partner's porn use may affect women's self-esteem.
25 May 2012, 01:46 PM ET
The gender of a leader can influence how their mistakes are received, a study indicates.
14 May 2012, 08:19 AM ET
Study links certain sexual acts with pleasure during condom use.
10 May 2012, 02:54 PM ET
Men with open gazes are viewed more favorably than the heavy-lidded sort.
07 May 2012, 03:00 PM ET
They tend to overshoot sharp turns, too.
07 May 2012, 08:25 AM ET
Men are more likely than women to be attracted to their opposite-sex friends.
27 April 2012, 06:53 PM ET
20 April 2012, 12:54 PM ET
Men's attraction to red doesn't seem linked to their preferences for female anatomy.
09 April 2012, 04:46 PM ET
Evidence is mounting that the vaginal orgasm differs from clitoral orgasms.
22 March 2012, 04:48 PM ET
Fertile fantasies are slightly more likely to feature men.
19 March 2012, 11:35 AM ET
New research explores exercise-induced orgasms, and they are very real.
09 March 2012, 04:56 PM ET
Teens who don't get formal sex education have sex earlier.
01 March 2012, 03:45 PM ET
How much do you really know about sexually transmitted diseases?
28 February 2012, 02:56 PM ET
Condom use decreases by about 10 percent over freshman year.
14 February 2012, 04:51 PM ET
Some people with severe allergies can experience an allergic reaction after kissing.
13 February 2012, 06:41 PM ET
People who pass on Chlamydia are viewed as worse than people who pass on fatal H1N1.
02 February 2012, 05:13 PM ET
Men are hard-wired to remember unpleasant emotional experiences — the opposite of women.
20 January 2012, 04:16 PM ET
Sexually aggressive men act out differently depending on personality and attitudes.
28 December 2011, 10:46 AM ET
From vibrators to bestiality, boy were our cheeks red.
14 December 2011, 02:00 PM ET
Women and most men tend to deceive themselves about a potential partner's level of interest.
05 December 2011, 03:01 PM ET
The sexual antics may explain how yeast develop drug-resistant strains.
23 November 2011, 10:20 AM ET
Women who distrust their partners are more likely to fake orgasms.
20 November 2011, 02:28 PM ET
Having sex more than once a month linked with relationship satisfaction.
09 November 2011, 04:51 AM ET
Men want sex, women commitment, right? Read on.
18 October 2011, 12:14 PM ET
Think men really ponder sex WAY more than women?
13 October 2011, 03:29 PM ET
A new study suggests that what's going on in a woman's head can make a big difference in bed.
04 October 2011, 07:01 PM ET
When a male fruit fly courts his potential mate, his song activates her immune system.
04 October 2011, 06:57 PM ET
College women get some leeway with hookups, but are otherwise held to strict dating standards.
22 September 2011, 02:00 PM ET
Female beetles sleep around when they come from inbred populations, using their wily ways to use the best sperm from the best mates.
19 September 2011, 02:33 PM ET
About 8 percent of women have vulvodynia, but many do not seek treatment.
18 September 2011, 10:48 AM ET
The media would make us believe the answer is "no."
14 September 2011, 01:02 PM ET
College students believe their friends are "hooking up" much more than they really are.
03 August 2011, 02:50 PM ET
Stimulating the nipples activates the same brain region as touching the genitals.