Birth-control pills could screw up a woman's ability to sniff out a compatible mate, a new study finds.
While several factors can send a woman swooning, including big brains and brawn, body odor can be critical in the final decision, the researchers say.
When individuals with different MHC genes mate, their offspring's immune systems can recognize a broader range of foreign cells, making them more fit.
Past studies have suggested couples with dissimilar MHC genes are more satisfied and more likely to be faithful to a mate.
Here's a primer to help you sort through the options and find what's best for you: Best for the women who crave a schedule: If you’re the type that likes to stick to a routine so you don’t have to sweat the small stuff, the combination pill (aka The Pill, Combination Oral Contraceptive, or the COC Pill) might be something you want to pencil in to your routine.
The pill is composed of two hormones: estrogen and progestin, and together, they mimic the hormones you naturally produce and stop your little eggs from releasing or developing.
METHODOLOGY: Researchers in Scotland designed several experiments that delved further into the hormonal quirks wrought by birth control.
In the first, they gave young, straight women the ability to digitally alter images male faces.PROBLEM: Oral contraceptives can affect how attractive women are to men, as well as who they themselves are attracted to.And while there are plenty of reasons to start dating someone aside from how attractive we find them, its possible that these effects might have some influence on who we end up with.Yes, there are SO many options it can be overwhelming.The fact of the matter is that choosing the right birth control has a ton of factors to consider from your goal, your abilities, your health, your future plans and so forth.Your best bet: Condoms plus a backup method Whether you’re 25 or 45, condoms are a must to guard against STDs.