Saturday 24th January 2026
Difficulty: Easy

Photo by Oxana Lyashenko (Unsplash)
Questions inspired by an article in The Guardian - link at the end.
1. How long should an adult's menstrual cycle be (counting from the first day of the period to the first day of the next)?
2. How many of the following are true:
- It’s not safe to swim during your period
- You can’t get pregnant during your period
- The scent of a person menstruating attracts bears
3. It is often said that when women are in close proximity for long enough, their menstrual cycles will eventually sync up, also known as “menstrual synchrony”. Is menstrual synchrony real?
Privacy: we believe in respecting our users' privacy. When you click the button above, you'll get your score straight away. We won't request your details, or try to sell you anything, or ask you to subscribe.