The credit (blame?) lies with fluctuations in one specific hormone.

Add Yahoo as a preferred source to see more of our stories on Google. Periods are a physiological cycle that the vast majority of people with a uterus experience. Even though it is such a regular part ...

Having a period is a lot like being a gladiator. Between the blood, sweat, and tears —and the relentless feeling of being ...

Having a period every single month has long been considered the norm and viewed as a sign of good health and fertility. But if you’re generally healthy and aren’t trying to become pregnant, you don’t ...

Medically reviewed by Peter Weiss, MD The start of your period is the beginning of the menstrual cycle, which typically lasts ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Nancy Redd Nancy Redd is Wirecutter’s health and grooming writer. Her latest ...

A period that shows up two weeks ahead of schedule can feel like a red flag, but timing alone does not always signal trouble. Cycles shift for all kinds of reasons—some meaningful, some just part of ...

If you’ve ever had a period, you’ve likely experienced cramps, bloating, headaches, and other PMS symptoms. According to the U.S. Office on Women’s Health, 90% of women will (at some point in their ...

Flo is the most downloaded women’s health app. Here is an in-depth review of how Flo works and how it compares to other period tracking apps. Plus, our tester gives us an insider look. Share on ...