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"  Ever wonder why you&amp;#039;re super horny one week, and then totally not into sex the next? Well, you might have guessed this, but it&amp;#039;s your pesky hormones making your libido yo-yo like crazy.  And, for the first time ever, researchers out of the University of California, Santa Barbara have been able to actually demonstrate how your hormones can predict your desire levels based on the days when estrogen and progesterone spike in your monthly cycle. &amp;quot;We found two hormonal signals that had opposite effects on sexual motivation,&amp;quot; said professor James Roney, the study&amp;#039;s lead author. &amp;quot;Estrogen was having a positive effect, but with a two-day lag. Progesterone was having a persistent negative effect, both for current day, day before, and two days earlier.&amp;quot; (So, two days after your estrogen hits its optimal level in your cycle, you&amp;#039;ll really wanna get it on, and you&amp;#039;ll really not want to get it on for three days when progesterone reaches its max.) The cool thing about this research is that it shows how estrogen, not testosterone, was the main factor here in boosting sex drive. Giving women a dose of testosterone has been a go-to &amp;quot;cure&amp;quot; for libido issues\u2014in fact, when I thought taking the Pill was messing with my desire levels, my doc at the time gave me birth control with some kind of synthetic testosterone that totally did the trick\u2026but it made me break out like crazy. (Kinda counterintuitive to swap low sex drive and clear skin for horniness and major zits.)  So, hopefully this new research will lead to better solutions for women who are feeling less than frisky\u2014and a birth control that doesn&amp;#039;t make you feel sexually dead inside and keeps your skin pretty. A gal can dream!  Want more from Natasha? Follow her on Twitter or find her on Facebook. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cosmopolitan.com/sex-love/news/a12623/estrogen-boosts-sex-drive/>