The menstrual cycle is an approximately 28 day cycle that prepares the female body for pregnancy. Hormone levels change during the cycle. Controlled by chemical signals called hormones ...

The cycle begins again. The pill uses the body's negative feedback system to prevent ovulation and implantation of an embryo, in the same way the hormones provided by the placenta halt the female ...

Women's reproductive and sexual health is a crucial aspect of overall well-being, yet it is often misunderstood or overlooked ...

This research is part of a larger study to gain insight into the psychological, social, and behavioral aspects of steroid hormones ... average cycle length. Fifty-six women enrolled in the study ...