"Being physically active seems to be a potent aphrodisiac for women," says Tina M. Penhollow, Ph.D., an associate professor of health promotion at Florida Atlantic University, who has published research on how exercise affects sexual self-esteem.
Studies have shown that women who frequently exercise become aroused more quickly and are able to orgasm faster and more intensely. University of Texas at Austin researchers found that female study participants were 169 percent more aroused (as indicated by blood flow in genital tissue) while watching a short porn flick after 20 minutes of vigorous cycling than when they watched it without riding beforehand. When you get excited, blood surges into the clitoral bulbs, making the entire region around the vagina responsive to pleasure. Cardiovascular exercise can help blood pump faster to the right parts of your body; it can also reduce chronic inflammation, which can damage blood vessels and decrease circulation, putting a damper on your sexual bliss.
The tissue that forms the clitoris contains 8,000 nerve fibers that extend into the entire pelvic region, including the vaginal walls. Researchers at the University of Texas at Austin found that physical activity was able to prime a woman's body for sexual activity by making her more sensitive to touch and increasing the efficacy of stimuli