Cisgender women and others assigned female at birth are twice as likely as cisgender men and others assigned male at birth to develop dry eye, and hormones ... their cycle, with worsening symptoms ...

The menstrual cycle is a 21-35 day hormonal cycle during which estrogen and progesterone levels change to prepare the body for pregnancy. As hormones change throughout the month, you will ...

Hormone levels change during the cycle. Controlled by chemical signals called hormones, the menstrual cycle prepares the female reproductive system for pregnancy. It lasts 28 days on average ...

By the 1940s scientists had figured out the importance of hormones in the female reproductive cycle. They established that once a woman becomes pregnant, her fertility is suspended. A woman cannot ...