Listen Live Graphics (Indy)
WTLC Featured Video

Friends shopping at a flower market.

Suddenly you and your roommate or bestie are asking each other for tampons — or you’re complaining to your coworker that she made you start earlier than usual.

We’ve been bleeding since, well, the beginning of time, and science has been trying to pinpoint how this actually happens among cohorts of women.

A study conducted in 1971 discovered that the longer women lived together, the closer their menstrual cycles became, according to Empowerher.

The phenomenon, described as the McClintock effect, was an example of how pheromones (chemical signals we emit unknowingly) effect our bodies.

The McClintock study was seemingly debunked by a 1990s follow-up study that observed women in college dorms, work settings, and among family members to see if there was synchronicity.

Researchers found periods synced-up some times but not others, leading scientists to believe it was happening at random.

They concluded we bleed so much that we will naturally overlap one another in cycles.

So it’s not really magic; more of the law of numbers and randomization.

Magic would’ve been a much more exciting explanation, though.

SOURCE: Empowerher | PHOTO CREDIT: Getty


No, It’s Not All In Your Head: You Really Can Gain Five Pounds While On Your Period

WTF: New Ad Depicts Your Period As A Matronly Black Woman

When Can I Interview? Companies Are Offering Period Leave For Some Of Their Female Employees

When Your Bestie Messes With Your (Menstrual) Flow: Why Our Periods Sync Up  was originally published on

Also On 106.7 WTLC:
Rest In Power: Notable Black Folks Who We’ve Lost In 2021
33 photos