See the Supplemental Material for detailed methods. Vaginal smears were conducted daily to determine estrous cycle phase, as previously described [33]. Only rats with a regular 4-day estrous cycle ...

Deterioration in nutritional condition with aging could reduce reproductive success but coincides with declines in residual reproductive potential, thus invoking opposing expectations for late-life ...

The intricate landscape of female reproductive biology represents a dynamic and complex system, with menstrual cycles serving as a critical indicator of overall physiological well-being. Understanding ...

The constant remodeling of the organs of the female reproductive tract during the reproductive cycle leads to fibrosis and chronic inflammation over the years. Scientists have now uncovered these ...

In summary, the female reproductive system plays an essential role in both reproduction and overall health. Through proper ...

Sexual reproduction keeps many species alive. In humans, male and female reproductive systems look very different, though. The female reproductive system has many unique parts, including the ovaries, ...

In many species, including humans and mice, the fluctuating levels of the hormones progesterone and estrogen determine whether the female is fertile or not. And in the case of mice, whether she's ...

Understand how smoking silently worsens menstrual health by aggravating uterine cramps and disrupting cycles. Read on to ...

During mammalian reproduction, millions of sperm undertake a journey that only one will finish. This journey to fertilization has been commonly viewed as a race: a sea of sperm competing to get to the ...

Females experiencing fertility challenges may have a range of symptoms stemming from the underlying cause. Several common symptoms include irregular menstrual cycles, painful menstrual cramps, or pain ...